Fundies. English
Segment disclosures
Company overviewGreat Lakes Dredge & Dock CORP
Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.
Revenue · Reported segment facts
95 dimension combinations 743 retained observations 37 reported periods Partial retained history
Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.
Operating Segments · Capital Dredging Foreign · Dredging · Type Of Work
Consolidation Items · Product Or Service · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-01-01 – 2022-12-31 | 149000 | USD | 20250221 | Open filing evidence |
Operating Segments · Capital Dredging US · Dredging · Type Of Work
Consolidation Items · Product Or Service · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 348085000 | USD | 20250221 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 108682000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 249329000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 140647000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 69900000 | USD | 20250506 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 186715000 | USD | 20250221 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 38157000 | USD | 20240806 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 342461000 | USD | 20250221 | Open filing evidence |
Operating Segments · Rivers Lakes · Dredging · Type Of Work
Consolidation Items · Product Or Service · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=gldd:RiversLakesMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 423000 | USD | 20240507 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 2336000 | USD | 20240507 | Open filing evidence |
Operating Segments · Rivers Lakes · Type Of Work · Dredging
Consolidation Items · Product Or Service · Subsegments · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=gldd:RiversLakesMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 5200000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 9747000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 2336000 | USD | 20230502 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 4636000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 8213000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 3577000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 1610000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 20290000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 5886000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 14265000 | USD | 20221101 | Open filing evidence |
Operating Segments · Federal Government · Dredging · Type Of Customer
Consolidation Items · Statement Geographical · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:FederalGovernmentMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 78681000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 328211000 | USD | 20231107 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 107368000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 249530000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 142162000 | USD | 20230502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 431705000 | USD | 20230217 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 62228000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 325162000 | USD | 20231107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 95360000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 262934000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 167574000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 568980000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 137605000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 395668000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 582949000 | USD | 20230217 | Open filing evidence |
Operating Segments · Foreign · Dredging · Type Of Customer
Consolidation Items · Statement Geographical · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:ForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-01-01 – 2022-12-31 | 149000 | USD | 20230217 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 6596000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 274000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 6596000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 25892000 | USD | 20230217 | Open filing evidence |
Operating Segments · Foreign · Type Of Customer · Dredging
Consolidation Items · Statement Geographical · Subsegments · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:ForeignMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 6596000 | USD | 20240216 | Open filing evidence |
Operating Segments · State And Local Government · Dredging · Type Of Customer
Consolidation Items · Statement Geographical · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:StateAndLocalGovernmentMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 33316000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 74497000 | USD | 20231107 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 25299000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 41181000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 15882000 | USD | 20230502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 207033000 | USD | 20230217 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 91544000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 167067000 | USD | 20231107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 50922000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 75523000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 24601000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 118712000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 17058000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 88902000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 85737000 | USD | 20230217 | Open filing evidence |
Operating Segments · Dredging · Rivers Lakes · Type Of Work
Consolidation Items · Statement Business Segments · Product Or Service · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:RiversLakesMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 2366000 | USD | 20250221 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 711000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1814000 | USD | 20241105 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 680000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1103000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 16318000 | USD | 20250221 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 5200000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 9747000 | USD | 20241105 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 2211000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 4547000 | USD | 20240806 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 15527000 | USD | 20250221 | Open filing evidence |
Operating Segments · Dredging · Federal Government · Type Of Customer
Consolidation Items · Statement Business Segments · Statement Geographical · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:StatementGeographicalAxis=gldd:FederalGovernmentMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 134408000 | USD | 20250506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 430980000 | USD | 20250221 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 85876000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 339352000 | USD | 20241105 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 118687000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 253476000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 134789000 | USD | 20250506 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 438790000 | USD | 20250221 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 78681000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 328211000 | USD | 20241105 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 107368000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 249530000 | USD | 20240806 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 431705000 | USD | 20250221 | Open filing evidence |
Operating Segments · Dredging · Private · Type Of Customer
Consolidation Items · Statement Business Segments · Statement Geographical · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:StatementGeographicalAxis=gldd:PrivateMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 5188000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 5188000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 9894000 | USD | 20230217 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 4574000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 9894000 | USD | 20231107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 3146000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 5320000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 2174000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 31861000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 13701000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 25019000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 39023000 | USD | 20230217 | Open filing evidence |
Operating Segments · Dredging · State And Local Government · Type Of Customer
Consolidation Items · Statement Business Segments · Statement Geographical · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:StatementGeographicalAxis=gldd:StateAndLocalGovernmentMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 36394000 | USD | 20250506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 154427000 | USD | 20250221 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 39330000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 108493000 | USD | 20241105 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 21463000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 69163000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 47700000 | USD | 20250506 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 129583000 | USD | 20250221 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 33316000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 74497000 | USD | 20241105 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 25299000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 41181000 | USD | 20240806 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 207033000 | USD | 20250221 | Open filing evidence |
Operating Segments · Dredging · Type Of Customer
Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 858048000 | USD | 20260309 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 189083000 | USD | 20251104 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 625703000 | USD | 20251104 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 762693000 | USD | 20260309 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 191173000 | USD | 20251104 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 559919000 | USD | 20251104 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 170086000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 368746000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 586962000 | USD | 20260309 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 117185000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 407896000 | USD | 20241105 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 132667000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 290711000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 158044000 | USD | 20230502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 648781000 | USD | 20250221 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 158346000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 502123000 | USD | 20231107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 149428000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 343777000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 194349000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 726149000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 168638000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 516185000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 733601000 | USD | 20230217 | Open filing evidence |
Operating Segments · Dredging · Type Of Work
Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 858048000 | USD | 20260309 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 189083000 | USD | 20251104 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 625703000 | USD | 20251104 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 762693000 | USD | 20260309 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 191173000 | USD | 20251104 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 559919000 | USD | 20251104 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 170086000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 368746000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 198660000 | USD | 20240507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 586962000 | USD | 20260309 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 117185000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 407896000 | USD | 20241105 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 132667000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 290711000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 158044000 | USD | 20240507 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 648781000 | USD | 20250221 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 726149000 | USD | 20240216 | Open filing evidence |
Operating Segments · Dredging · Type Of Work · Capital Dredging US
Consolidation Items · Statement Business Segments · Subsegments · Product Or Service
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 69900000 | USD | 20240507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 186715000 | USD | 20240216 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 32475000 | USD | 20240507 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 342461000 | USD | 20240216 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 397034000 | USD | 20240216 | Open filing evidence |
Operating Segments · Dredging · Type Of Work · Maintenance Dredging
Consolidation Items · Statement Business Segments · Subsegments · Product Or Service
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:MaintenanceDredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 31443000 | USD | 20250506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 158882000 | USD | 20250221 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 37867000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 130742000 | USD | 20241105 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 28464000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 92875000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 64834000 Restated | USD | 20250506 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 187586000 | USD | 20250221 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 33816000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 141553000 | USD | 20241105 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 35809000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 107737000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 71928000 | USD | 20240507 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 98077000 | USD | 20250221 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 132551000 | USD | 20240216 | Open filing evidence |
Operating Segments · Offshore Energy · Type Of Customer
Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:OffshoreEnergyMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 30229000 | USD | 20260309 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 6122000 | USD | 20251104 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 6122000 | USD | 20251104 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 2663000 | USD | 20260309 | Open filing evidence |
Operating Segments · Offshore Energy · Type Of Work
Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:OffshoreEnergyMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 30229000 | USD | 20260309 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 6122000 | USD | 20251104 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 6122000 | USD | 20251104 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 2663000 | USD | 20260309 | Open filing evidence |
Operating Segments · Type Of Customer · Foreign · Dredging
Consolidation Items · Subsegments · Statement Geographical · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;srt:StatementGeographicalAxis=gldd:ForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-01-01 – 2022-12-31 | 149000 | USD | 20240216 | Open filing evidence |
Operating Segments · Type Of Customer · Dredging
Consolidation Items · Subsegments · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 198660000 | USD | 20240507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 586962000 | USD | 20240216 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 158044000 | USD | 20240507 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 648781000 | USD | 20240216 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 726149000 | USD | 20240216 | Open filing evidence |
Operating Segments · Type Of Customer · Dredging · Federal Government
Consolidation Items · Subsegments · Statement Business Segments · Statement Geographical
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:StatementGeographicalAxis=gldd:FederalGovernmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 134789000 | USD | 20240507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 438790000 | USD | 20240216 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 142162000 | USD | 20240507 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 431705000 | USD | 20240216 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 568980000 | USD | 20240216 | Open filing evidence |
Operating Segments · Type Of Customer · Dredging · Private
Consolidation Items · Subsegments · Statement Business Segments · Statement Geographical
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:StatementGeographicalAxis=gldd:PrivateMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 16171000 | USD | 20240507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 18589000 | USD | 20240216 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 9894000 | USD | 20240216 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 31861000 | USD | 20240216 | Open filing evidence |
Operating Segments · Type Of Work · Beach Nourishment Dredging · Dredging
Consolidation Items · Subsegments · Product Or Service · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:BeachNourishmentDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 23567000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 131362000 | USD | 20231107 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 56490000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 107795000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 51305000 | USD | 20230502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 192567000 | USD | 20230217 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 36934000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 153970000 | USD | 20231107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 45119000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 117036000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 71917000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 169678000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 15945000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 109208000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 201361000 | USD | 20230217 | Open filing evidence |
Operating Segments · Type Of Work · Capital Dredging Foreign · Dredging
Consolidation Items · Subsegments · Product Or Service · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-01-01 – 2022-12-31 | 149000 | USD | 20230217 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 6596000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 274000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 6596000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 25892000 | USD | 20230217 | Open filing evidence |
Operating Segments · Type Of Work · Capital Dredging US · Dredging
Consolidation Items · Subsegments · Product Or Service · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-04-01 – 2023-06-30 | 38157000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 32475000 | USD | 20230502 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 90574000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 281278000 | USD | 20231107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 89693000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 101010000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 397034000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 111481000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 336163000 | USD | 20230217 | Open filing evidence |
Operating Segments · Type Of Work · Maintenance Dredging · Dredging
Consolidation Items · Subsegments · Product Or Service · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:MaintenanceDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-04-01 – 2023-06-30 | 35809000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 107737000 | USD | 20230801 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 12648000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 32460000 | USD | 20230801 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 35052000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 117631000 | USD | 20221101 | Open filing evidence |
Operating Segments · Type Of Work · Dredging
Consolidation Items · Subsegments · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 117185000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 407896000 | USD | 20231107 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 132667000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 290711000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 158044000 | USD | 20230502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 648781000 | USD | 20230217 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 158346000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 502123000 | USD | 20231107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 149428000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 343777000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 194349000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 726149000 | USD | 20230217 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 168638000 | USD | 20221101 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 516185000 | USD | 20221101 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 733601000 | USD | 20230217 | Open filing evidence |
Operating Segments · Type Of Work · Dredging · Capital Dredging US
Consolidation Items · Subsegments · Statement Business Segments · Product Or Service
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 54602000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 125234000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 70632000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 342461000 | USD | 20230217 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 281278000 | USD | 20221101 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 190704000 | USD | 20230801 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 268485000 | USD | 20221101 | Open filing evidence |
Operating Segments · Type Of Work · Dredging · Maintenance Dredging
Consolidation Items · Subsegments · Statement Business Segments · Product Or Service
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:MaintenanceDredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 33816000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 141553000 | USD | 20231107 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 71928000 | USD | 20230502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 98077000 | USD | 20230217 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 26202000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 58662000 | USD | 20231107 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 19812000 | USD | 20230502 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 132551000 | USD | 20230217 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 148767000 | USD | 20230217 | Open filing evidence |
Beach Nourishment Dredging · Operating Segments · Dredging · Type Of Work
Product Or Service · Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ProductOrServiceAxis=gldd:BeachNourishmentDredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 120302000 | USD | 20250506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 253360000 | USD | 20250221 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 43913000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 178034000 | USD | 20241105 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 70195000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 134121000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 63926000 | USD | 20250506 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 196343000 | USD | 20250221 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 23567000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 131362000 | USD | 20241105 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 56490000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 107795000 | USD | 20240806 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 51305000 | USD | 20240507 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 192567000 | USD | 20250221 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 169678000 | USD | 20240216 | Open filing evidence |
Capital Dredging Foreign · Operating Segments · Dredging · Type Of Work
Product Or Service · Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-01-01 – 2022-12-31 | 149000 | USD | 20240216 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 6596000 | USD | 20240216 | Open filing evidence |
Capital Dredging US · Operating Segments · Dredging · Type Of Work
Product Or Service · Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 91120000 | USD | 20250506 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 70747000 | USD | 20240806 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 54602000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 125234000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 70632000 | USD | 20240806 | Open filing evidence |
Rivers Lakes · Operating Segments · Dredging · Type Of Work
Product Or Service · Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:ProductOrServiceAxis=gldd:RiversLakesMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 16318000 | USD | 20240216 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 15527000 | USD | 20240216 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 20290000 | USD | 20240216 | Open filing evidence |
Rivers Lakes · Operating Segments · Type Of Work · Dredging
Product Or Service · Consolidation Items · Subsegments · Statement Business Segments
Source dimensions
srt:ProductOrServiceAxis=gldd:RiversLakesMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-04-01 – 2023-06-30 | 2211000 | USD | 20230801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 4547000 | USD | 20230801 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 15527000 | USD | 20230217 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 4636000 | USD | 20221101 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 1968000 | USD | 20230801 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 21418000 | USD | 20230217 | Open filing evidence |
Use Of Equipment · Dredging · Federal Government
Product Or Service · Statement Business Segments · Statement Geographical
Source dimensions
srt:ProductOrServiceAxis=gldd:UseOfEquipmentMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:StatementGeographicalAxis=gldd:FederalGovernmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 25800000 | USD | 20260309 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 27700000 | USD | 20250221 | Open filing evidence |
Federal Government · Dredging · Use Of Equipment
Statement Geographical · Statement Business Segments · Product Or Service
Source dimensions
srt:StatementGeographicalAxis=gldd:FederalGovernmentMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:UseOfEquipmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 716000 | USD | 20230217 | Open filing evidence |
Federal Government · Type Of Customer · Dredging · Operating Segments
Statement Geographical · Subsegments · Statement Business Segments · Consolidation Items
Source dimensions
srt:StatementGeographicalAxis=gldd:FederalGovernmentMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2019-07-01 – 2019-09-30 | 134763000 | USD | 20191105 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 431722000 | USD | 20191105 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 126804000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 296959000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 170155000 | USD | 20190503 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 144050000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 313657000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 92913000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 169607000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 76694000 | USD | 20190503 | Open filing evidence |
Foreign · Operating Segments · Dredging · Type Of Customer
Statement Geographical · Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:StatementGeographicalAxis=gldd:ForeignMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-01-01 – 2022-12-31 | 149000 | USD | 20250221 | Open filing evidence |
Foreign · Dredging
Statement Geographical · Statement Business Segments
Source dimensions
srt:StatementGeographicalAxis=gldd:ForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-12-31 | 14088000 | USD | 20190226 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 42306000 | USD | 20190226 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 59413000 | USD | 20190226 | Open filing evidence |
Foreign · Type Of Customer · Dredging · Operating Segments
Statement Geographical · Subsegments · Statement Business Segments · Consolidation Items
Source dimensions
srt:StatementGeographicalAxis=gldd:ForeignMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2019-07-01 – 2019-09-30 | 12554000 | USD | 20191105 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 39523000 | USD | 20191105 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 18640000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 26969000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 8329000 | USD | 20190503 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 5045000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 13847000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 3279000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 8802000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 5523000 | USD | 20190503 | Open filing evidence |
Private · Operating Segments · Dredging · Type Of Customer
Statement Geographical · Consolidation Items · Statement Business Segments · Subsegments
Source dimensions
srt:StatementGeographicalAxis=gldd:PrivateMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 72063000 | USD | 20250506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 177286000 | USD | 20250221 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 65967000 | USD | 20241105 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 112074000 | USD | 20241105 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 29936000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 46107000 | USD | 20240806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 16171000 | USD | 20250506 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 18589000 | USD | 20250221 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 5188000 | USD | 20241105 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 5188000 | USD | 20241105 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 9894000 | USD | 20250221 | Open filing evidence |
Private · Type Of Customer · Dredging · Operating Segments
Statement Geographical · Subsegments · Statement Business Segments · Consolidation Items
Source dimensions
srt:StatementGeographicalAxis=gldd:PrivateMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2019-07-01 – 2019-09-30 | 3953000 | USD | 20191105 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 6901000 | USD | 20191105 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 2898000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 2948000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 50000 | USD | 20190503 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 22469000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 42982000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 15732000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 20513000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 4781000 | USD | 20190503 | Open filing evidence |
State And Local Government · Operating Segments · Type Of Customer · Dredging
Statement Geographical · Consolidation Items · Subsegments · Statement Business Segments
Source dimensions
srt:StatementGeographicalAxis=gldd:StateAndLocalGovernmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 47700000 | USD | 20240507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 129583000 | USD | 20240216 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 15882000 | USD | 20240507 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 207033000 | USD | 20240216 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 118712000 | USD | 20240216 | Open filing evidence |
State And Local Government · Type Of Customer · Dredging · Operating Segments
Statement Geographical · Subsegments · Statement Business Segments · Consolidation Items
Source dimensions
srt:StatementGeographicalAxis=gldd:StateAndLocalGovernmentMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2019-07-01 – 2019-09-30 | 18505000 | USD | 20191105 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 69077000 | USD | 20191105 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 36469000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 50572000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 14103000 | USD | 20190503 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 7107000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 77078000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 23346000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 69971000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 46625000 | USD | 20190503 | Open filing evidence |
Beach Nourishment Dredging · Dredging
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=gldd:BeachNourishmentDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 191070000 | USD | 20180301 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 215041000 | USD | 20180301 | Open filing evidence |
Capital Dredging Foreign · Dredging
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 42306000 | USD | 20180301 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 59413000 | USD | 20180301 | Open filing evidence |
Capital Dredging US · Dredging
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 185113000 | USD | 20180301 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 219914000 | USD | 20180301 | Open filing evidence |
Maintenance Dredging · Dredging
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=gldd:MaintenanceDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 134923000 | USD | 20180301 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 92274000 | USD | 20180301 | Open filing evidence |
Rivers Lakes · Dredging
Product Or Service · Statement Business Segments
Source dimensions
us-gaap:ProductOrServiceAxis=gldd:RiversLakesMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 38747000 | USD | 20180301 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 50826000 | USD | 20180301 | Open filing evidence |
Dredging
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-01-01 – 2017-12-31 | 592159000 | USD | 20180301 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 637468000 | USD | 20180301 | Open filing evidence |
Dredging · Operating Segments · Type Of Customer
Statement Business Segments · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 178671000 | USD | 20181106 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 447564000 | USD | 20181106 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 135270000 | USD | 20180801 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 268893000 | USD | 20180801 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 133862000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 439423000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 152507000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 305561000 | USD | 20180801 | Open filing evidence |
Dredging · Operating Segments · Type Of Work
Statement Business Segments · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 149428000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 343777000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 194349000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 168638000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 516185000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 169914000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 347547000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 177633000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 175841000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 561456000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 167920000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 385615000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 217695000 | USD | 20210504 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 169775000 | USD | 20201104 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 547223000 | USD | 20201104 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 184811000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 377448000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 192637000 | USD | 20200505 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 178671000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 447564000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 135270000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 268893000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 133623000 | USD | 20190503 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 133862000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 439423000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 152507000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 305561000 | USD | 20180801 | Open filing evidence |
Dredging · Beach Nourishment Dredging · Operating Segments · Type Of Work
Statement Business Segments · Product Or Service · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:BeachNourishmentDredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 45119000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 117036000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 71917000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 15945000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 109208000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 46631000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 93262000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 46631000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 29780000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 165668000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 56038000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 135888000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 79850000 | USD | 20210504 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 41959000 | USD | 20201104 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 133897000 | USD | 20201104 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 58195000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 91938000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 33743000 | USD | 20200505 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 42691000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 122673000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 38121000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 79982000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 41861000 | USD | 20190503 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 40726000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 141365000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 60304000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 100639000 | USD | 20180801 | Open filing evidence |
Dredging · Capital Dredging Foreign · Operating Segments · Type Of Work
Statement Business Segments · Product Or Service · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-07-01 – 2021-09-30 | 274000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 6596000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 1613000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 6322000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 4709000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 9787000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 20630000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 3981000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 10843000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 6862000 | USD | 20210504 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 12554000 | USD | 20201104 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 39523000 | USD | 20201104 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 18640000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 26969000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 8329000 | USD | 20200505 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 5045000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 13847000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 3279000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 8802000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 5523000 | USD | 20190503 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 5849000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 37423000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 12420000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 31574000 | USD | 20180801 | Open filing evidence |
Dredging · Capital Dredging US · Operating Segments · Type Of Work
Statement Business Segments · Product Or Service · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 89693000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 190704000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 101010000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 111481000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 268485000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 79399000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 157005000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 77606000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 98194000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 245183000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 63440000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 146989000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 83549000 | USD | 20210504 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 62518000 | USD | 20201104 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 214668000 | USD | 20201104 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 59406000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 152150000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 92744000 | USD | 20200505 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 105934000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 252537000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 69651000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 146603000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 76952000 | USD | 20190503 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 30561000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 128634000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 31472000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 98073000 | USD | 20180801 | Open filing evidence |
Dredging · Maintenance Dredging · Operating Segments · Type Of Work
Statement Business Segments · Product Or Service · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:MaintenanceDredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 12648000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 32460000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 19812000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 35052000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 117631000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 37278000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 82579000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 45301000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 33453000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 117806000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 41968000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 84353000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 42385000 | USD | 20210504 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 30074000 | USD | 20201104 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 89911000 | USD | 20201104 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 30188000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 59837000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 29649000 | USD | 20200505 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 11581000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 38461000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 19077000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 26880000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 7803000 | USD | 20190503 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 42282000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 98532000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 34337000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 56250000 | USD | 20180801 | Open filing evidence |
Dredging · Rivers Lakes · Operating Segments · Type Of Work
Statement Business Segments · Product Or Service · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:RiversLakesMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 1968000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 3577000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 1610000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 5886000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 14265000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 4993000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 8379000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 3386000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 4627000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 12169000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 2493000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 7542000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 5049000 | USD | 20210504 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 22670000 | USD | 20201104 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 69224000 | USD | 20201104 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 18382000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 46554000 | USD | 20200804 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 28172000 | USD | 20200505 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 13420000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 20046000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 5142000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 6626000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 1484000 | USD | 20190503 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 14444000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 33469000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 13974000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 19025000 | USD | 20180801 | Open filing evidence |
Dredging · Use Of Equipment · Federal Government
Statement Business Segments · Product Or Service · Statement Geographical
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ProductOrServiceAxis=gldd:UseOfEquipmentMember;srt:StatementGeographicalAxis=gldd:FederalGovernmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 716000 | USD | 20240216 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 616000 | USD | 20220223 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 2103000 | USD | 20210224 | Open filing evidence |
Dredging · Foreign
Statement Business Segments · Statement Geographical
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:StatementGeographicalAxis=gldd:ForeignMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 5045000 | USD | 20181106 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 13847000 | USD | 20181106 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 3279000 | USD | 20180801 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 8802000 | USD | 20180801 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 5849000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 37423000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 12420000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 31574000 | USD | 20180801 | Open filing evidence |
Dredging · Operating Segments
Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 133623000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 153054000 | USD | 20180504 | Open filing evidence |
Dredging · Beach Nourishment Dredging · Operating Segments
Statement Business Segments · Product Or Service · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:ProductOrServiceAxis=gldd:BeachNourishmentDredgingMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 41861000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 40335000 | USD | 20180504 | Open filing evidence |
Dredging · Capital Dredging Foreign · Operating Segments
Statement Business Segments · Product Or Service · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 5523000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 19154000 | USD | 20180504 | Open filing evidence |
Dredging · Capital Dredging US · Operating Segments
Statement Business Segments · Product Or Service · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 76952000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 66601000 | USD | 20180504 | Open filing evidence |
Dredging · Maintenance Dredging · Operating Segments
Statement Business Segments · Product Or Service · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:ProductOrServiceAxis=gldd:MaintenanceDredgingMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 7803000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 21913000 | USD | 20180504 | Open filing evidence |
Dredging · Rivers Lakes · Operating Segments
Statement Business Segments · Product Or Service · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:ProductOrServiceAxis=gldd:RiversLakesMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 1484000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 5051000 | USD | 20180504 | Open filing evidence |
Dredging · Foreign
Statement Business Segments · Statement Geographical
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;us-gaap:StatementGeographicalAxis=gldd:ForeignMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 5523000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 19154000 | USD | 20180504 | Open filing evidence |
Dredging Segment · Operating Segments
Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 178671000 | USD | 20181106 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 447564000 | USD | 20181106 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 135270000 | USD | 20180801 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 268893000 | USD | 20180801 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 133862000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 439423000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 152507000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 305561000 | USD | 20180801 | Open filing evidence |
Dredging Segment · Operating Segments
Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingSegmentMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 133623000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 592159000 | USD | 20180301 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 133862000 | USD | 20171107 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 439423000 | USD | 20171107 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 152507000 | USD | 20170803 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 305561000 | USD | 20170803 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 153054000 | USD | 20180504 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 637468000 | USD | 20180301 | Open filing evidence |
| 2016-07-01 – 2016-09-30 | 154448000 | USD | 20171107 | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 453122000 | USD | 20171107 | Open filing evidence |
Dredging Segment · Non Us
Statement Business Segments · Statement Geographical
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingSegmentMember;us-gaap:StatementGeographicalAxis=us-gaap:NonUsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2017-07-01 – 2017-09-30 | 5849000 | USD | 20171107 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 37423000 | USD | 20171107 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 12420000 | USD | 20170803 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 31574000 | USD | 20170803 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 19154000 | USD | 20170503 | Open filing evidence |
| 2016-07-01 – 2016-09-30 | 21139000 | USD | 20171107 | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 34331000 | USD | 20171107 | Open filing evidence |
Environmental And Infrastructure Segment · Operating Segments
Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:EnvironmentalAndInfrastructureSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 25651000 | USD | 20181106 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 53941000 | USD | 20181106 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 15320000 | USD | 20180801 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 28290000 | USD | 20180801 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 29667000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 73602000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 24711000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 43935000 | USD | 20180801 | Open filing evidence |
Environmental And Infrastructure Segment · Operating Segments · Type Of Work
Statement Business Segments · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:EnvironmentalAndInfrastructureSegmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 25651000 | USD | 20181106 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 53941000 | USD | 20181106 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 15320000 | USD | 20180801 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 28290000 | USD | 20180801 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 29667000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 73602000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 24711000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 43935000 | USD | 20180801 | Open filing evidence |
Environmental And Infrastructure Segment · Other · Operating Segments · Type Of Customer
Statement Business Segments · Statement Geographical · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:EnvironmentalAndInfrastructureSegmentMember;srt:StatementGeographicalAxis=gldd:OtherMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 13912000 | USD | 20181106 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 24801000 | USD | 20181106 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 4283000 | USD | 20180801 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 10889000 | USD | 20180801 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 16881000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 39320000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 13750000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 22439000 | USD | 20180801 | Open filing evidence |
Environmental And Infrastructure Segment · Private · Operating Segments · Type Of Customer
Statement Business Segments · Statement Geographical · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:EnvironmentalAndInfrastructureSegmentMember;srt:StatementGeographicalAxis=gldd:PrivateMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 11739000 | USD | 20181106 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 29140000 | USD | 20181106 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 11037000 | USD | 20180801 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 17401000 | USD | 20180801 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 12786000 | USD | 20181106 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 34282000 | USD | 20181106 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 10961000 | USD | 20180801 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 21496000 | USD | 20180801 | Open filing evidence |
Environmental And Infrastructure Segment · Operating Segments
Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:EnvironmentalAndInfrastructureSegmentMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 12970000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 112607000 | USD | 20180301 | Open filing evidence |
| 2017-07-01 – 2017-09-30 | 29667000 | USD | 20171107 | Open filing evidence |
| 2017-01-01 – 2017-09-30 | 73602000 | USD | 20171107 | Open filing evidence |
| 2017-04-01 – 2017-06-30 | 24711000 | USD | 20170803 | Open filing evidence |
| 2017-01-01 – 2017-06-30 | 43935000 | USD | 20170803 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 19224000 | USD | 20180504 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 133637000 | USD | 20180301 | Open filing evidence |
| 2016-01-01 – 2016-09-30 | 103437000 | USD | 20171107 | Open filing evidence |
Environmental And Infrastructure Segment · Other · Operating Segments
Statement Business Segments · Statement Geographical · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:EnvironmentalAndInfrastructureSegmentMember;us-gaap:StatementGeographicalAxis=gldd:OtherMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 6606000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 8689000 | USD | 20180504 | Open filing evidence |
Environmental And Infrastructure Segment · Private · Operating Segments
Statement Business Segments · Statement Geographical · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:EnvironmentalAndInfrastructureSegmentMember;us-gaap:StatementGeographicalAxis=gldd:PrivateMember;us-gaap:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-03-31 | 6364000 | USD | 20180504 | Open filing evidence |
| 2017-01-01 – 2017-03-31 | 10535000 | USD | 20180504 | Open filing evidence |
Offshore Wind · Operating Segments · Type Of Customer
Statement Business Segments · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:OffshoreWindMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 2663000 | USD | 20240216 | Open filing evidence |
Offshore Wind · Operating Segments · Type Of Work
Statement Business Segments · Consolidation Items · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=gldd:OffshoreWindMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 2663000 | USD | 20240216 | Open filing evidence |
Type Of Customer · Operating Segments · Federal Government · Dredging
Subsegments · Consolidation Items · Statement Geographical · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:FederalGovernmentMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 95360000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 262934000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 167574000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 137605000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 395668000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 127331000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 258063000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 130732000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 154083000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 453346000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 133496000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 299263000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 165767000 | USD | 20210504 | Open filing evidence |
Type Of Customer · Operating Segments · Foreign · Dredging
Subsegments · Consolidation Items · Statement Geographical · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:ForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-07-01 – 2021-09-30 | 274000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 6596000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 1613000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 6322000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 4709000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 9787000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 20630000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 3981000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 10843000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 6862000 | USD | 20210504 | Open filing evidence |
Type Of Customer · Operating Segments · Private · Dredging
Subsegments · Consolidation Items · Statement Geographical · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:PrivateMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 3146000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 5320000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 2174000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 13701000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 25019000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 3901000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 11318000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 7417000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 7507000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 10991000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 750000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 3484000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 2734000 | USD | 20210504 | Open filing evidence |
Type Of Customer · Operating Segments · State And Local Government · Dredging
Subsegments · Consolidation Items · Statement Geographical · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:StatementGeographicalAxis=gldd:StateAndLocalGovernmentMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 50922000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 75523000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 24601000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 17058000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 88902000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 37069000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 71844000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 34775000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 4464000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 76489000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 29693000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 72025000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 42332000 | USD | 20210504 | Open filing evidence |
Type Of Customer · Operating Segments · Dredging
Subsegments · Consolidation Items · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-04-01 – 2022-06-30 | 149428000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 343777000 | USD | 20220802 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 194349000 | USD | 20220503 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 168638000 | USD | 20211102 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 516185000 | USD | 20211102 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 169914000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 347547000 | USD | 20220802 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 177633000 | USD | 20220503 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 175841000 | USD | 20211102 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 561456000 | USD | 20211102 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 167920000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 385615000 | USD | 20210803 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 217695000 | USD | 20210504 | Open filing evidence |
Type Of Customer · Dredging · Operating Segments
Subsegments · Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfCustomerMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2019-07-01 – 2019-09-30 | 169775000 | USD | 20191105 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 547223000 | USD | 20191105 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 184811000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 377448000 | USD | 20190802 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 192637000 | USD | 20190503 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 178671000 | USD | 20191105 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 447564000 | USD | 20191105 | Open filing evidence |
| 2018-04-01 – 2018-06-30 | 135270000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-06-30 | 268893000 | USD | 20190802 | Open filing evidence |
| 2018-01-01 – 2018-03-31 | 133623000 | USD | 20190503 | Open filing evidence |
Type Of Work · Beach Nourishment Dredging · Dredging
Subsegments · Product Or Service · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:BeachNourishmentDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-12-31 | 175923000 | USD | 20190226 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 191070000 | USD | 20190226 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 215041000 | USD | 20190226 | Open filing evidence |
Type Of Work · Beach Nourishment Dredging · Dredging · Operating Segments
Subsegments · Product Or Service · Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:BeachNourishmentDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 169678000 | USD | 20220223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 201361000 | USD | 20220223 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 182369000 | USD | 20220223 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 175923000 | USD | 20210224 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 191070000 | USD | 20200226 | Open filing evidence |
Type Of Work · Capital Dredging Foreign · Dredging
Subsegments · Product Or Service · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-12-31 | 14088000 | USD | 20190226 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 42306000 | USD | 20190226 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 59413000 | USD | 20190226 | Open filing evidence |
Type Of Work · Capital Dredging Foreign · Dredging · Operating Segments
Subsegments · Product Or Service · Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingForeignMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 6596000 | USD | 20220223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 25892000 | USD | 20220223 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 48619000 | USD | 20220223 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 14088000 | USD | 20210224 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 42306000 | USD | 20200226 | Open filing evidence |
Type Of Work · Capital Dredging US · Dredging
Subsegments · Product Or Service · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-12-31 | 333037000 | USD | 20190226 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 185113000 | USD | 20190226 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 219914000 | USD | 20190226 | Open filing evidence |
Type Of Work · Capital Dredging US · Dredging · Operating Segments
Subsegments · Product Or Service · Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:CapitalDredgingUSMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 397034000 | USD | 20220223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 336163000 | USD | 20220223 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 299706000 | USD | 20220223 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 333037000 | USD | 20210224 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 185113000 | USD | 20200226 | Open filing evidence |
Type Of Work · Maintenance Dredging · Dredging
Subsegments · Product Or Service · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:MaintenanceDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-12-31 | 53427000 | USD | 20190226 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 134923000 | USD | 20190226 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 92274000 | USD | 20190226 | Open filing evidence |
Type Of Work · Maintenance Dredging · Dredging · Operating Segments
Subsegments · Product Or Service · Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:MaintenanceDredgingMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 132551000 | USD | 20220223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 148767000 | USD | 20220223 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 104753000 | USD | 20220223 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 53427000 | USD | 20210224 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 134923000 | USD | 20200226 | Open filing evidence |
Type Of Work · Rivers Lakes · Dredging
Subsegments · Product Or Service · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:RiversLakesMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-01-01 – 2018-12-31 | 44320000 | USD | 20190226 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 38747000 | USD | 20190226 | Open filing evidence |
| 2016-01-01 – 2016-12-31 | 50826000 | USD | 20190226 | Open filing evidence |
Type Of Work · Rivers Lakes · Dredging · Operating Segments
Subsegments · Product Or Service · Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;srt:ProductOrServiceAxis=gldd:RiversLakesMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 20290000 | USD | 20220223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 21418000 | USD | 20220223 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 76071000 | USD | 20220223 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 44320000 | USD | 20210224 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 38747000 | USD | 20200226 | Open filing evidence |
Type Of Work · Dredging · Operating Segments
Subsegments · Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:SubsegmentsAxis=gldd:TypeOfWorkMember;us-gaap:StatementBusinessSegmentsAxis=gldd:DredgingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 726149000 | USD | 20220223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 733601000 | USD | 20220223 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 711518000 | USD | 20220223 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 620795000 | USD | 20210224 | Open filing evidence |
| 2017-01-01 – 2017-12-31 | 592159000 | USD | 20200226 | Open filing evidence |