Segment disclosures

Company overview

Martin Marietta Materials, Inc.

Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.

Revenue · Reported segment facts

85 dimension combinations 759 retained observations 25 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 · Asphalt And Paving · Reportable Subsegments · Building Materials Business

Consolidation Items · Product Or Service · Subsegments Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:AsphaltAndPavingMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30359900000 USD20231101Open filing evidence
2023-01-01 – 2023-09-30658700000 USD20231101Open filing evidence
2023-04-01 – 2023-06-30240900000 USD20230727Open filing evidence
2023-01-01 – 2023-06-30298800000 USD20230727Open filing evidence
2023-01-01 – 2023-03-3158000000 USD20230504Open filing evidence
2022-07-01 – 2022-09-30314000000 USD20231101Open filing evidence
2022-01-01 – 2022-09-30586400000 USD20231101Open filing evidence
2022-04-01 – 2022-06-30215700000 USD20230727Open filing evidence
2022-01-01 – 2022-06-30272500000 USD20230727Open filing evidence
2022-01-01 – 2022-03-3156800000 USD20230504Open filing evidence

Operating Segments · Asphalt And Paving Services · Building Materials Business · Reportable Subsegments

Consolidation Items · Product Or Service · Statement Business Segments · Subsegments Consolidation Items

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:AsphaltAndPavingServicesMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember
PeriodValueUnitFiledEvidence
2025-04-01 – 2025-06-30228000000 USD20250807Open filing evidence
2025-01-01 – 2025-06-30308000000 USD20250807Open filing evidence
2025-01-01 – 2025-03-3180000000 USD20250430Open filing evidence
2024-07-01 – 2024-09-30343000000 USD20241030Open filing evidence
2024-01-01 – 2024-09-30647000000 USD20241030Open filing evidence
2023-01-01 – 2023-09-30659000000 USD20241030Open filing evidence

Operating Segments · Asphalt And Paving Services · Reportable Subsegments · Building Materials Business

Consolidation Items · Product Or Service · Subsegments Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:AsphaltAndPavingServicesMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember
PeriodValueUnitFiledEvidence
2024-04-01 – 2024-06-30245000000 USD20250807Open filing evidence
2024-01-01 – 2024-06-30303000000 USD20250807Open filing evidence
2024-01-01 – 2024-03-3159000000 USD20250430Open filing evidence
2023-07-01 – 2023-09-30360000000 USD20241030Open filing evidence
2023-04-01 – 2023-06-30241000000 USD20240808Open filing evidence
2023-01-01 – 2023-06-30299000000 USD20240808Open filing evidence

Operating Segments · Products And Services · Building Materials Business East Group

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessEastGroupMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-312324100000 USD20230224Open filing evidence
2022-07-01 – 2022-09-30728500000 USD20221102Open filing evidence
2022-04-01 – 2022-06-30632400000 USD20220728Open filing evidence
2022-01-01 – 2022-06-301027000000 USD20220728Open filing evidence
2021-04-01 – 2021-06-30596500000 USD20220728Open filing evidence
2021-01-01 – 2021-06-30969100000 USD20220728Open filing evidence

Operating Segments · Products And Services · Building Materials Business West Group

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember
PeriodValueUnitFiledEvidence
2022-04-01 – 2022-06-30816800000 USD20220728Open filing evidence
2022-01-01 – 2022-06-301499200000 USD20220728Open filing evidence
2021-01-01 – 2021-09-301861900000 USD20221102Open filing evidence
2020-01-01 – 2020-12-312384600000 USD20230224Open filing evidence

Operating Segments · Ready Mixed Concrete · Reportable Subsegments · Building Materials Business

Consolidation Items · Product Or Service · Subsegments Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:ReadyMixedConcreteMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30285200000 USD20231101Open filing evidence
2023-01-01 – 2023-09-30776500000 USD20231101Open filing evidence
2023-04-01 – 2023-06-30271400000 USD20230727Open filing evidence
2023-01-01 – 2023-06-30491300000 USD20230727Open filing evidence
2023-01-01 – 2023-03-31220000000 USD20230504Open filing evidence
2022-07-01 – 2022-09-30227700000 USD20231101Open filing evidence
2022-01-01 – 2022-09-30745400000 USD20231101Open filing evidence
2022-04-01 – 2022-06-30226600000 USD20230727Open filing evidence
2022-01-01 – 2022-06-30517800000 USD20230727Open filing evidence
2022-01-01 – 2022-03-31291100000 USD20230504Open filing evidence

Operating Segments · Cargo And Freight · Building Materials Business

Consolidation Items · Product Or Service · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31404200000 USD20230224Open filing evidence
2022-07-01 – 2022-09-30124500000 USD20221102Open filing evidence
2022-01-01 – 2022-09-30312100000 USD20221102Open filing evidence
2021-01-01 – 2021-12-31305300000 USD20230224Open filing evidence
2020-01-01 – 2020-12-31276000000 USD20230224Open filing evidence

Operating Segments · Building Materials Business East Group

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessEastGroupMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31526000000 USD20240430Open filing evidence
2023-01-01 – 2023-12-312763400000 USD20240223Open filing evidence
2023-07-01 – 2023-09-30814300000 USD20231101Open filing evidence
2023-01-01 – 2023-09-302079000000 USD20231101Open filing evidence
2023-04-01 – 2023-06-30735100000 USD20230727Open filing evidence
2023-01-01 – 2023-06-301264700000 USD20230727Open filing evidence
2023-01-01 – 2023-03-31530000000 RestatedUSD20240430Open filing evidence
2022-01-01 – 2022-12-312468100000 USD20240223Open filing evidence
2022-07-01 – 2022-09-30773600000 USD20231101Open filing evidence
2022-01-01 – 2022-09-301866900000 USD20231101Open filing evidence
2022-04-01 – 2022-06-30674500000 USD20230727Open filing evidence
2022-01-01 – 2022-06-301093300000 USD20230727Open filing evidence
2022-01-01 – 2022-03-31418800000 USD20230504Open filing evidence
2021-01-01 – 2021-12-312303000000 USD20240223Open filing evidence
2021-07-01 – 2021-09-30684100000 USD20221102Open filing evidence
2021-01-01 – 2021-09-301714400000 USD20221102Open filing evidence
2021-04-01 – 2021-06-30635300000 USD20220728Open filing evidence
2021-01-01 – 2021-06-301030200000 USD20220728Open filing evidence
2020-01-01 – 2020-12-311949100000 USD20230224Open filing evidence

Operating Segments · Building Materials Business East Group · Products And Services

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessEastGroupMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-09-301755500000 USD20221102Open filing evidence
2021-01-01 – 2021-12-312161600000 USD20230224Open filing evidence
2021-07-01 – 2021-09-30641800000 USD20221102Open filing evidence
2021-01-01 – 2021-09-301610900000 USD20221102Open filing evidence
2020-01-01 – 2020-12-311826600000 USD20230224Open filing evidence

Operating Segments · Building Materials Business East Group · Cargo And Freight

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessEastGroupMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31144000000 USD20230224Open filing evidence
2022-07-01 – 2022-09-3045100000 USD20221102Open filing evidence
2022-01-01 – 2022-09-30111400000 USD20221102Open filing evidence
2022-04-01 – 2022-06-3042100000 USD20220728Open filing evidence
2022-01-01 – 2022-06-3066300000 USD20220728Open filing evidence
2021-01-01 – 2021-12-31141400000 USD20230224Open filing evidence
2021-07-01 – 2021-09-3042300000 USD20221102Open filing evidence
2021-01-01 – 2021-09-30103500000 USD20221102Open filing evidence
2021-04-01 – 2021-06-3038800000 USD20220728Open filing evidence
2021-01-01 – 2021-06-3061100000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31122500000 USD20230224Open filing evidence

Operating Segments · Building Materials Business

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-301795000000 USD20260730Open filing evidence
2026-01-01 – 2026-06-303015000000 USD20260730Open filing evidence
2026-01-01 – 2026-03-311219000000 USD20260430Open filing evidence
2025-01-01 – 2025-12-315709000000 USD20260219Open filing evidence
2025-07-01 – 2025-09-301715000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-304308000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-301519000000 RestatedUSD20260730Open filing evidence
2025-01-01 – 2025-06-302594000000 RestatedUSD20260730Open filing evidence
2025-01-01 – 2025-03-311075000000 RestatedUSD20260430Open filing evidence
2024-01-01 – 2024-12-315342000000 RestatedUSD20260219Open filing evidence
2024-07-01 – 2024-09-301560000000 RestatedUSD20251104Open filing evidence
2024-01-01 – 2024-09-304007000000 RestatedUSD20251104Open filing evidence
2024-04-01 – 2024-06-301683000000 USD20250807Open filing evidence
2024-01-01 – 2024-06-302854000000 USD20250807Open filing evidence
2024-01-01 – 2024-03-311170000000 USD20250430Open filing evidence
2023-01-01 – 2023-12-315536000000 RestatedUSD20260219Open filing evidence
2023-07-01 – 2023-09-301918000000 RestatedUSD20241030Open filing evidence
2023-01-01 – 2023-09-304930000000 RestatedUSD20241030Open filing evidence
2023-04-01 – 2023-06-301740000000 RestatedUSD20240808Open filing evidence
2023-01-01 – 2023-06-303011000000 USD20240808Open filing evidence
2023-01-01 – 2023-03-311270700000 USD20230504Open filing evidence
2022-01-01 – 2022-12-315857000000 RestatedUSD20250221Open filing evidence
2022-07-01 – 2022-09-301736000000 USD20231101Open filing evidence
2022-01-01 – 2022-09-304449800000 USD20231101Open filing evidence
2022-04-01 – 2022-06-301560000000 USD20230727Open filing evidence
2022-01-01 – 2022-06-302713800000 USD20230727Open filing evidence
2022-01-01 – 2022-03-311153800000 USD20230504Open filing evidence
2021-01-01 – 2021-12-315115300000 USD20230224Open filing evidence
2021-07-01 – 2021-09-301478900000 USD20221102Open filing evidence
2021-01-01 – 2021-09-303692600000 USD20221102Open filing evidence
2021-04-01 – 2021-06-301302100000 USD20220728Open filing evidence
2021-01-01 – 2021-06-302213600000 USD20220728Open filing evidence
2020-01-01 – 2020-12-314487200000 USD20230224Open filing evidence

Operating Segments · Building Materials Business · Cargo And Freight

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2022-04-01 – 2022-06-30110800000 USD20220728Open filing evidence
2022-01-01 – 2022-06-30187600000 USD20220728Open filing evidence
2021-07-01 – 2021-09-3088100000 USD20221102Open filing evidence
2021-01-01 – 2021-09-30219800000 USD20221102Open filing evidence
2021-04-01 – 2021-06-3076800000 USD20220728Open filing evidence
2021-01-01 – 2021-06-30131600000 USD20220728Open filing evidence

Operating Segments · Building Materials Business · Reportable Subsegments · Aggregates

Consolidation Items · Statement Business Segments · Subsegments Consolidation Items · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;srt:ProductOrServiceAxis=mlm:AggregatesMember
PeriodValueUnitFiledEvidence
2025-01-01 – 2025-09-303780000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-301320000000 USD20250807Open filing evidence
2025-01-01 – 2025-03-311002000000 USD20260430Open filing evidence
2024-01-01 – 2024-12-314514000000 USD20250221Open filing evidence
2024-07-01 – 2024-09-301250000000 USD20241030Open filing evidence
2024-01-01 – 2024-09-303377000000 USD20241030Open filing evidence
2024-04-01 – 2024-06-301242000000 USD20250807Open filing evidence
2024-01-01 – 2024-06-302127000000 USD20240808Open filing evidence
2023-01-01 – 2023-12-314302000000 USD20260219Open filing evidence
2023-01-01 – 2023-06-302063000000 USD20240808Open filing evidence

Operating Segments · Building Materials Business · Reportable Subsegments · Cement And Ready Mixed Concrete

Consolidation Items · Statement Business Segments · Subsegments Consolidation Items · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;srt:ProductOrServiceAxis=mlm:CementAndReadyMixedConcreteMember
PeriodValueUnitFiledEvidence
2025-04-01 – 2025-06-30245000000 USD20250807Open filing evidence
2025-01-01 – 2025-06-30477000000 USD20250807Open filing evidence
2025-01-01 – 2025-03-31233000000 USD20250430Open filing evidence
2024-01-01 – 2024-12-311083000000 USD20250221Open filing evidence
2024-01-01 – 2024-06-30526000000 USD20240808Open filing evidence
2023-07-01 – 2023-09-30422000000 USD20241030Open filing evidence
2022-01-01 – 2022-12-311395000000 USD20250221Open filing evidence

Operating Segments · Building Materials Business · Reportable Subsegments · Building And Building Improvements

Consolidation Items · Statement Business Segments · Subsegments Consolidation Items · Property Plant And Equipment By Type

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;us-gaap:PropertyPlantAndEquipmentByTypeAxis=us-gaap:BuildingAndBuildingImprovementsMember
PeriodValueUnitFiledEvidence
2026-01-01 – 2026-03-31116000000 USD20260430Open filing evidence
2025-01-01 – 2025-12-31992000000 USD20260219Open filing evidence
2025-07-01 – 2025-09-30351000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30271000000 USD20260730Open filing evidence
2024-01-01 – 2024-12-311078000000 USD20260219Open filing evidence
2024-01-01 – 2024-09-30814000000 USD20251104Open filing evidence

Operating Segments · Building Materials Business West Group

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-301104300000 USD20231101Open filing evidence
2023-01-01 – 2023-09-302850600000 USD20231101Open filing evidence
2023-04-01 – 2023-06-301005200000 USD20230727Open filing evidence
2023-01-01 – 2023-06-301746300000 USD20230727Open filing evidence
2023-01-01 – 2023-03-31741100000 USD20230504Open filing evidence
2022-01-01 – 2022-12-313388600000 USD20230224Open filing evidence
2022-07-01 – 2022-09-30962400000 USD20231101Open filing evidence
2022-01-01 – 2022-09-302582900000 USD20231101Open filing evidence
2022-04-01 – 2022-06-30885500000 USD20230727Open filing evidence
2022-01-01 – 2022-06-301620500000 USD20230727Open filing evidence
2022-01-01 – 2022-03-31735000000 USD20230504Open filing evidence
2021-01-01 – 2021-12-312812300000 USD20230224Open filing evidence
2021-07-01 – 2021-09-30794800000 USD20221102Open filing evidence
2021-01-01 – 2021-09-301978200000 USD20221102Open filing evidence
2021-04-01 – 2021-06-30666800000 USD20220728Open filing evidence
2021-01-01 – 2021-06-301183400000 USD20220728Open filing evidence
2020-01-01 – 2020-12-312538100000 USD20230224Open filing evidence

Operating Segments · Building Materials Business West Group · Products And Services

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-313128400000 USD20230224Open filing evidence
2022-07-01 – 2022-09-30883000000 USD20221102Open filing evidence
2022-01-01 – 2022-09-302382200000 USD20221102Open filing evidence
2021-01-01 – 2021-12-312648400000 USD20230224Open filing evidence
2021-07-01 – 2021-09-30749000000 USD20221102Open filing evidence
2021-04-01 – 2021-06-30628800000 USD20220728Open filing evidence
2021-01-01 – 2021-06-301112900000 USD20220728Open filing evidence

Operating Segments · Building Materials Business West Group · Cargo And Freight

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31260200000 USD20230224Open filing evidence
2022-07-01 – 2022-09-3079400000 USD20221102Open filing evidence
2022-01-01 – 2022-09-30200700000 USD20221102Open filing evidence
2022-04-01 – 2022-06-3068700000 USD20220728Open filing evidence
2022-01-01 – 2022-06-30121300000 USD20220728Open filing evidence
2021-01-01 – 2021-12-31163900000 USD20230224Open filing evidence
2021-07-01 – 2021-09-3045800000 USD20221102Open filing evidence
2021-01-01 – 2021-09-30116300000 USD20221102Open filing evidence
2021-04-01 – 2021-06-3038000000 USD20220728Open filing evidence
2021-01-01 – 2021-06-3070500000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31153500000 USD20230224Open filing evidence

Operating Segments · Magnesia Specialties

Consolidation Items · Statement Business Segments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:MagnesiaSpecialtiesMember
PeriodValueUnitFiledEvidence
2025-04-01 – 2025-06-3090000000 USD20250807Open filing evidence
2025-01-01 – 2025-06-30178000000 USD20250807Open filing evidence
2025-01-01 – 2025-03-3187000000 USD20250430Open filing evidence
2024-01-01 – 2024-12-31320000000 USD20250221Open filing evidence
2024-07-01 – 2024-09-3082000000 USD20241030Open filing evidence
2024-01-01 – 2024-09-30243000000 USD20241030Open filing evidence
2024-04-01 – 2024-06-3081000000 USD20250807Open filing evidence
2024-01-01 – 2024-06-30161000000 USD20250807Open filing evidence
2024-01-01 – 2024-03-3181000000 USD20250430Open filing evidence
2023-01-01 – 2023-12-31315000000 RestatedUSD20250221Open filing evidence
2023-07-01 – 2023-09-3076000000 RestatedUSD20241030Open filing evidence
2023-01-01 – 2023-09-30239000000 RestatedUSD20241030Open filing evidence
2023-04-01 – 2023-06-3081000000 RestatedUSD20240808Open filing evidence
2023-01-01 – 2023-06-30164000000 RestatedUSD20240808Open filing evidence
2023-01-01 – 2023-03-3183000000 RestatedUSD20240430Open filing evidence
2022-01-01 – 2022-12-31304000000 USD20250221Open filing evidence
2022-07-01 – 2022-09-3075700000 USD20231101Open filing evidence
2022-01-01 – 2022-09-30234400000 USD20231101Open filing evidence
2022-04-01 – 2022-06-3081700000 USD20230727Open filing evidence
2022-01-01 – 2022-06-30158700000 USD20230727Open filing evidence
2022-01-01 – 2022-03-3177000000 USD20230504Open filing evidence
2021-01-01 – 2021-12-31298700000 USD20240223Open filing evidence
2021-07-01 – 2021-09-3078400000 USD20221102Open filing evidence
2021-01-01 – 2021-09-30225000000 USD20221102Open filing evidence
2021-04-01 – 2021-06-3075800000 USD20220728Open filing evidence
2021-01-01 – 2021-06-30146700000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31242700000 USD20230224Open filing evidence

Operating Segments · Magnesia Specialties · Products And Services

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:MagnesiaSpecialtiesMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31278000000 USD20230224Open filing evidence
2022-07-01 – 2022-09-3069000000 USD20221102Open filing evidence
2022-01-01 – 2022-09-30214400000 USD20221102Open filing evidence
2022-04-01 – 2022-06-3074600000 USD20220728Open filing evidence
2022-01-01 – 2022-06-30145400000 USD20220728Open filing evidence
2021-01-01 – 2021-12-31274700000 USD20230224Open filing evidence
2021-07-01 – 2021-09-3071900000 USD20221102Open filing evidence
2021-01-01 – 2021-09-30207100000 USD20221102Open filing evidence
2021-04-01 – 2021-06-3070000000 USD20220728Open filing evidence
2021-01-01 – 2021-06-30135200000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31220900000 USD20230224Open filing evidence

Operating Segments · Magnesia Specialties · Cargo And Freight

Consolidation Items · Statement Business Segments · Product Or Service

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:MagnesiaSpecialtiesMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-3126000000 USD20230224Open filing evidence
2022-07-01 – 2022-09-306700000 USD20221102Open filing evidence
2022-01-01 – 2022-09-3020000000 USD20221102Open filing evidence
2022-04-01 – 2022-06-307100000 USD20220728Open filing evidence
2022-01-01 – 2022-06-3013300000 USD20220728Open filing evidence
2021-01-01 – 2021-12-3124000000 USD20230224Open filing evidence
2021-07-01 – 2021-09-306500000 USD20221102Open filing evidence
2021-01-01 – 2021-09-3017900000 USD20221102Open filing evidence
2021-04-01 – 2021-06-305800000 USD20220728Open filing evidence
2021-01-01 – 2021-06-3011500000 USD20220728Open filing evidence
2020-01-01 – 2020-12-3121800000 USD20230224Open filing evidence

Operating Segments · Magnesia Specialties · Products And Services

Consolidation Items · Statement Business Segments · Subsegments

Source dimensions srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:MagnesiaSpecialtiesMember;us-gaap:SubsegmentsAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31278000000 USD20230224Open filing evidence
2022-04-01 – 2022-06-3074600000 USD20220728Open filing evidence
2021-01-01 – 2021-12-31274700000 USD20230224Open filing evidence
2021-04-01 – 2021-06-3070000000 USD20220728Open filing evidence
2021-01-01 – 2021-06-30135200000 USD20220728Open filing evidence

Operating Segments · Magnesia Specialties · Products

Consolidation Items · Statement Business Segments · Subsegments

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Operating Segments · Reportable Segments

Consolidation Items · Statement Business Segments

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Operating Segments · Specialties

Consolidation Items · Statement Business Segments

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Operating Segments · Products And Services · Asphalt And Paving · Reportable Subsegments · Building Materials Business

Consolidation Items · Subsegments · Product Or Service · Subsegments Consolidation Items · Statement Business Segments

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2021-01-01 – 2021-12-31514200000 USD20230224Open filing evidence
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2021-04-01 – 2021-06-30135300000 USD20220728Open filing evidence
2021-01-01 – 2021-06-30147600000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31331700000 USD20230224Open filing evidence

Operating Segments · Products And Services · Ready Mixed Concrete · Reportable Subsegments · Building Materials Business

Consolidation Items · Subsegments · Product Or Service · Subsegments Consolidation Items · Statement Business Segments

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2021-01-01 – 2021-12-311145800000 USD20230224Open filing evidence
2021-07-01 – 2021-09-30320800000 USD20221102Open filing evidence
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2021-04-01 – 2021-06-30268400000 USD20220728Open filing evidence
2021-01-01 – 2021-06-30503700000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31952100000 USD20230224Open filing evidence

Operating Segments · Products And Services · Building Materials Business

Consolidation Items · Subsegments · Statement Business Segments

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2022-01-01 – 2022-06-302526200000 USD20220728Open filing evidence
2021-01-01 – 2021-12-314810000000 USD20230224Open filing evidence
2021-07-01 – 2021-09-301390800000 USD20221102Open filing evidence
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2021-04-01 – 2021-06-301225300000 USD20220728Open filing evidence
2021-01-01 – 2021-06-302082000000 USD20220728Open filing evidence
2020-01-01 – 2020-12-314211200000 USD20230224Open filing evidence

Operating Segments · Products And Services · Magnesia Specialties

Consolidation Items · Subsegments · Statement Business Segments

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Operating Segments · Products And Services · Reportable Subsegments · Aggregates · Building Materials Business

Consolidation Items · Subsegments · Subsegments Consolidation Items · Product Or Service · Statement Business Segments

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2021-01-01 – 2021-06-301374400000 USD20220728Open filing evidence
2020-01-01 – 2020-12-312769300000 USD20230224Open filing evidence

Operating Segments · Products And Services · Reportable Subsegments · Cement · Building Materials Business

Consolidation Items · Subsegments · Subsegments Consolidation Items · Product Or Service · Statement Business Segments

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2021-01-01 – 2021-06-30226100000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31452500000 USD20230224Open filing evidence

Operating Segments · Reportable Subsegments · Aggregates · Building Materials Business

Consolidation Items · Subsegments Consolidation Items · Product Or Service · Statement Business Segments

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2022-01-01 – 2022-06-301814200000 USD20230727Open filing evidence
2022-01-01 – 2022-03-31756600000 USD20230504Open filing evidence

Operating Segments · Reportable Subsegments · Cement · Building Materials Business

Consolidation Items · Subsegments Consolidation Items · Product Or Service · Statement Business Segments

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2022-01-01 – 2022-03-31138300000 USD20230504Open filing evidence

Operating Segments · Reportable Subsegments · Building Materials Business · Aggregates

Consolidation Items · Subsegments Consolidation Items · Statement Business Segments · Product Or Service

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Operating Segments · Reportable Subsegments · Building Materials Business · Cement And Ready Mixed Concrete

Consolidation Items · Subsegments Consolidation Items · Statement Business Segments · Product Or Service

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Operating Segments · Reportable Subsegments · Building Materials Business · Building And Building Improvements

Consolidation Items · Subsegments Consolidation Items · Statement Business Segments · Property Plant And Equipment By Type

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Aggregates · Building Materials Business · Operating Segments · Reportable Subsegments · Products And Services

Product Or Service · Statement Business Segments · Consolidation Items · Subsegments Consolidation Items · Subsegments

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2020-04-01 – 2020-06-30754900000 USD20210729Open filing evidence
2020-01-01 – 2020-06-301325200000 USD20210729Open filing evidence

Asphalt And Paving · Operating Segments · Building Materials Business · Reportable Subsegments

Product Or Service · Consolidation Items · Statement Business Segments · Subsegments Consolidation Items

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2022-01-01 – 2022-12-31788000000 USD20250221Open filing evidence

Asphalt And Paving · Building Materials Business · Operating Segments · Reportable Subsegments · Products And Services

Product Or Service · Statement Business Segments · Consolidation Items · Subsegments Consolidation Items · Subsegments

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2020-04-01 – 2020-06-30107000000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30125100000 USD20210729Open filing evidence

Cement · Building Materials Business · Operating Segments · Reportable Subsegments · Products And Services

Product Or Service · Statement Business Segments · Consolidation Items · Subsegments Consolidation Items · Subsegments

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2020-04-01 – 2020-06-30109500000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30216100000 USD20210729Open filing evidence

Products And Services · Operating Segments · Building Materials Business East Group

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-312161600000 USD20220222Open filing evidence
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Products And Services · Operating Segments · Building Materials Business West Group

Product Or Service · Consolidation Items · Statement Business Segments

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Products And Services · Operating Segments · Magnesia Specialties

Product Or Service · Consolidation Items · Statement Business Segments

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2021-01-01 – 2021-12-31274700000 USD20220222Open filing evidence
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Products And Services · Building Materials Business

Product Or Service · Statement Business Segments

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2021-01-01 – 2021-06-302082000000 USD20220728Open filing evidence
2020-01-01 – 2020-12-314211200000 USD20230224Open filing evidence

Ready Mixed Concrete · Building Materials Business · Operating Segments · Reportable Subsegments · Products And Services

Product Or Service · Statement Business Segments · Consolidation Items · Subsegments Consolidation Items · Subsegments

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2021-01-01 – 2021-03-31235300000 USD20220503Open filing evidence
2020-01-01 – 2020-12-31952100000 USD20220222Open filing evidence
2020-07-01 – 2020-09-30254600000 USD20211102Open filing evidence
2020-01-01 – 2020-09-30689400000 USD20211102Open filing evidence
2020-04-01 – 2020-06-30245100000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30434800000 USD20210729Open filing evidence

Cargo And Freight · Operating Segments · Building Materials Business East Group

Product Or Service · Consolidation Items · Statement Business Segments

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PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-31141400000 USD20220222Open filing evidence
2020-01-01 – 2020-12-31122500000 USD20220222Open filing evidence

Cargo And Freight · Operating Segments · Building Materials Business West Group

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-31163900000 USD20220222Open filing evidence
2020-01-01 – 2020-12-31153500000 USD20220222Open filing evidence

Cargo And Freight · Operating Segments · Magnesia Specialties

Product Or Service · Consolidation Items · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=mlm:MagnesiaSpecialtiesMember
PeriodValueUnitFiledEvidence
2021-01-01 – 2021-12-3124000000 USD20220222Open filing evidence
2020-01-01 – 2020-12-3121800000 USD20220222Open filing evidence

Cargo And Freight · Building Materials Business

Product Or Service · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-09-30312100000 USD20221102Open filing evidence
2022-01-01 – 2022-06-30187600000 USD20220728Open filing evidence
2021-01-01 – 2021-12-31305300000 USD20230224Open filing evidence
2021-04-01 – 2021-06-3076800000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31276000000 USD20220222Open filing evidence

Cargo And Freight · Building Materials Business · Operating Segments

Product Or Service · Statement Business Segments · Consolidation Items

Source dimensions srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-3176800000 USD20220503Open filing evidence
2021-01-01 – 2021-12-31305300000 USD20220222Open filing evidence
2021-07-01 – 2021-09-3088100000 USD20211102Open filing evidence
2021-01-01 – 2021-09-30219800000 USD20211102Open filing evidence
2021-04-01 – 2021-06-3076800000 USD20210729Open filing evidence
2021-01-01 – 2021-06-30131600000 USD20210729Open filing evidence
2021-01-01 – 2021-03-3154900000 USD20220503Open filing evidence
2020-01-01 – 2020-12-31276000000 USD20220222Open filing evidence
2020-07-01 – 2020-09-3075000000 USD20211102Open filing evidence
2020-01-01 – 2020-09-30212900000 USD20211102Open filing evidence
2020-04-01 – 2020-06-3076400000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30137900000 USD20210729Open filing evidence

Service · California And Colorado · Building Materials Business West Group

Product Or Service · Statement Geographical · Statement Business Segments

Source dimensions srt:ProductOrServiceAxis=us-gaap:ServiceMember;srt:StatementGeographicalAxis=mlm:CaliforniaAndColoradoMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-30172900000 USD20231101Open filing evidence
2023-01-01 – 2023-09-30307200000 USD20231101Open filing evidence
2023-04-01 – 2023-06-30107900000 USD20230727Open filing evidence
2023-01-01 – 2023-06-30134300000 USD20230727Open filing evidence
2023-01-01 – 2023-03-3126300000 USD20230504Open filing evidence
2022-01-01 – 2022-12-31353700000 USD20230224Open filing evidence
2022-07-01 – 2022-09-30138700000 USD20231101Open filing evidence
2022-01-01 – 2022-09-30252100000 USD20231101Open filing evidence
2022-04-01 – 2022-06-3095000000 USD20230727Open filing evidence
2022-01-01 – 2022-06-30113300000 USD20230727Open filing evidence
2022-01-01 – 2022-03-3118300000 USD20230504Open filing evidence
2021-01-01 – 2021-12-31259100000 USD20230224Open filing evidence
2021-07-01 – 2021-09-30100500000 USD20221102Open filing evidence
2021-01-01 – 2021-09-30182700000 USD20221102Open filing evidence
2021-04-01 – 2021-06-3073400000 USD20220728Open filing evidence
2021-01-01 – 2021-06-3082200000 USD20220728Open filing evidence
2020-01-01 – 2020-12-31287600000 USD20230224Open filing evidence

California And Colorado · Service · Building Materials Business West Group

Statement Geographical · Product Or Service · Statement Business Segments

Source dimensions srt:StatementGeographicalAxis=mlm:CaliforniaAndColoradoMember;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-3118300000 USD20220503Open filing evidence
2021-01-01 – 2021-03-318800000 USD20220503Open filing evidence

CO · Service · Building Materials Business West Group

Statement Geographical · Product Or Service · Statement Business Segments

Source dimensions srt:StatementGeographicalAxis=stpr:CO;srt:ProductOrServiceAxis=us-gaap:ServiceMember;us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember
PeriodValueUnitFiledEvidence
2021-07-01 – 2021-09-30100500000 USD20211102Open filing evidence
2020-07-01 – 2020-09-30112800000 USD20211102Open filing evidence

Building Materials Business East Group · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessEastGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30972000000 USD20260730Open filing evidence
2026-01-01 – 2026-06-301807000000 USD20260730Open filing evidence
2026-01-01 – 2026-03-31835000000 USD20260430Open filing evidence
2025-01-01 – 2025-12-313194000000 USD20260219Open filing evidence
2025-07-01 – 2025-09-30953000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-302419000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30878000000 RestatedUSD20260730Open filing evidence
2025-01-01 – 2025-06-301636000000 RestatedUSD20260730Open filing evidence
2025-01-01 – 2025-03-31758000000 RestatedUSD20260430Open filing evidence
2024-01-01 – 2024-12-312941000000 USD20260219Open filing evidence
2024-07-01 – 2024-09-30849000000 USD20251104Open filing evidence
2024-01-01 – 2024-09-302198000000 USD20251104Open filing evidence
2024-04-01 – 2024-06-30823000000 USD20250807Open filing evidence
2024-01-01 – 2024-06-301349000000 USD20250807Open filing evidence
2024-01-01 – 2024-03-31526000000 USD20250430Open filing evidence
2023-01-01 – 2023-12-312763000000 USD20260219Open filing evidence
2023-07-01 – 2023-09-30814000000 USD20241030Open filing evidence
2023-01-01 – 2023-09-302079000000 USD20241030Open filing evidence
2023-04-01 – 2023-06-30735000000 USD20240808Open filing evidence
2023-01-01 – 2023-06-301265000000 USD20240808Open filing evidence
2022-01-01 – 2022-12-312468000000 USD20250221Open filing evidence
2022-01-01 – 2022-03-31418800000 USD20220503Open filing evidence
2021-07-01 – 2021-09-30684100000 USD20211102Open filing evidence
2021-01-01 – 2021-09-301714400000 USD20211102Open filing evidence
2021-04-01 – 2021-06-30635300000 USD20210729Open filing evidence
2021-01-01 – 2021-06-301030200000 USD20210729Open filing evidence
2021-01-01 – 2021-03-31394900000 USD20220503Open filing evidence
2020-07-01 – 2020-09-30549300000 USD20211102Open filing evidence
2020-01-01 – 2020-09-301465900000 USD20211102Open filing evidence
2020-04-01 – 2020-06-30534500000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30916500000 USD20210729Open filing evidence

Building Materials Business East Group · Operating Segments · Products And Services

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessEastGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-31394600000 USD20220503Open filing evidence
2021-07-01 – 2021-09-30641800000 USD20211102Open filing evidence
2021-01-01 – 2021-09-301610900000 USD20211102Open filing evidence
2021-04-01 – 2021-06-30596500000 USD20210729Open filing evidence
2021-01-01 – 2021-06-30969100000 USD20210729Open filing evidence
2021-01-01 – 2021-03-31372500000 USD20220503Open filing evidence
2020-07-01 – 2020-09-30514100000 USD20211102Open filing evidence
2020-01-01 – 2020-09-301371800000 USD20211102Open filing evidence
2020-04-01 – 2020-06-30499700000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30857600000 USD20210729Open filing evidence

Building Materials Business East Group · Operating Segments · Cargo And Freight

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessEastGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-3124200000 USD20220503Open filing evidence
2021-07-01 – 2021-09-3042300000 USD20211102Open filing evidence
2021-01-01 – 2021-09-30103500000 USD20211102Open filing evidence
2021-04-01 – 2021-06-3038800000 USD20210729Open filing evidence
2021-01-01 – 2021-06-3061100000 USD20210729Open filing evidence
2021-01-01 – 2021-03-3122400000 USD20220503Open filing evidence
2020-07-01 – 2020-09-3035200000 USD20211102Open filing evidence
2020-01-01 – 2020-09-3094100000 USD20211102Open filing evidence
2020-04-01 – 2020-06-3034800000 USD20210729Open filing evidence
2020-01-01 – 2020-06-3058900000 USD20210729Open filing evidence

Building Materials Business

Statement Business Segments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember
PeriodValueUnitFiledEvidence
2023-07-01 – 2023-09-301918600000 USD20231101Open filing evidence
2023-01-01 – 2023-09-304929600000 USD20231101Open filing evidence
2023-04-01 – 2023-06-301740300000 USD20230727Open filing evidence
2023-01-01 – 2023-06-303011000000 USD20230727Open filing evidence
2023-01-01 – 2023-03-311270700000 USD20230504Open filing evidence
2022-01-01 – 2022-12-315856700000 USD20230224Open filing evidence
2022-07-01 – 2022-09-301736000000 USD20231101Open filing evidence
2022-01-01 – 2022-09-304449800000 USD20231101Open filing evidence
2022-04-01 – 2022-06-301560000000 USD20230727Open filing evidence
2022-01-01 – 2022-06-302713800000 USD20230727Open filing evidence
2022-01-01 – 2022-03-311153800000 USD20230504Open filing evidence
2021-01-01 – 2021-12-315115300000 USD20230224Open filing evidence
2021-07-01 – 2021-09-301478900000 USD20221102Open filing evidence
2021-01-01 – 2021-09-303692600000 USD20221102Open filing evidence
2021-04-01 – 2021-06-301302100000 USD20220728Open filing evidence
2021-01-01 – 2021-06-302213600000 USD20220728Open filing evidence
2021-01-01 – 2021-03-31911500000 USD20220503Open filing evidence
2020-01-01 – 2020-12-314487200000 USD20230224Open filing evidence
2020-07-01 – 2020-09-301260500000 USD20211102Open filing evidence
2020-01-01 – 2020-09-303370100000 USD20211102Open filing evidence
2020-04-01 – 2020-06-301217000000 USD20210729Open filing evidence
2020-01-01 – 2020-06-302109600000 USD20210729Open filing evidence

Building Materials Business · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-311170000000 USD20240430Open filing evidence
2023-01-01 – 2023-12-316461800000 USD20240223Open filing evidence
2023-01-01 – 2023-03-311271000000 USD20240430Open filing evidence
2022-01-01 – 2022-12-315856700000 USD20240223Open filing evidence
2022-01-01 – 2022-03-311153800000 USD20220503Open filing evidence
2021-01-01 – 2021-12-315115300000 USD20240223Open filing evidence
2021-07-01 – 2021-09-301478900000 USD20211102Open filing evidence
2021-01-01 – 2021-09-303692600000 USD20211102Open filing evidence
2021-04-01 – 2021-06-301302100000 USD20210729Open filing evidence
2021-01-01 – 2021-06-302213600000 USD20210729Open filing evidence
2021-01-01 – 2021-03-31911500000 USD20220503Open filing evidence
2020-01-01 – 2020-12-314487200000 USD20220222Open filing evidence
2020-07-01 – 2020-09-301260500000 USD20211102Open filing evidence
2020-01-01 – 2020-09-303370100000 USD20211102Open filing evidence
2020-04-01 – 2020-06-301217000000 USD20210729Open filing evidence
2020-01-01 – 2020-06-302109600000 USD20210729Open filing evidence

Building Materials Business · Operating Segments · Aggregates · Reportable Subsegments

Statement Business Segments · Consolidation Items · Product Or Service · Subsegments Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:AggregatesMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-314301600000 USD20240223Open filing evidence
2023-01-01 – 2023-03-31912000000 USD20240430Open filing evidence

Building Materials Business · Operating Segments · Asphalt And Paving · Reportable Subsegments

Statement Business Segments · Consolidation Items · Product Or Service · Subsegments Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:AsphaltAndPavingMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31887100000 USD20240223Open filing evidence
2022-01-01 – 2022-12-31787900000 USD20240223Open filing evidence
2021-01-01 – 2021-12-31517900000 USD20240223Open filing evidence

Building Materials Business · Operating Segments · Asphalt And Paving Services · Reportable Subsegments

Statement Business Segments · Consolidation Items · Product Or Service · Subsegments Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:AsphaltAndPavingServicesMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-3159000000 USD20240430Open filing evidence
2023-01-01 – 2023-03-3158000000 USD20240430Open filing evidence

Building Materials Business · Operating Segments · Cement · Reportable Subsegments

Statement Business Segments · Consolidation Items · Product Or Service · Subsegments Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:CementMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-31725500000 USD20240223Open filing evidence
2022-01-01 – 2022-12-31620000000 USD20240223Open filing evidence
2021-01-01 – 2021-12-31509300000 USD20240223Open filing evidence

Building Materials Business · Operating Segments · Ready Mixed Concrete · Reportable Subsegments

Statement Business Segments · Consolidation Items · Product Or Service · Subsegments Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:ReadyMixedConcreteMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember
PeriodValueUnitFiledEvidence
2023-01-01 – 2023-12-311009300000 USD20240223Open filing evidence
2022-01-01 – 2022-12-31953200000 USD20240223Open filing evidence
2021-01-01 – 2021-12-311147500000 USD20240223Open filing evidence

Building Materials Business · Operating Segments · Products And Services

Statement Business Segments · Consolidation Items · Subsegments

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-311077000000 USD20220503Open filing evidence
2021-01-01 – 2021-12-314810000000 USD20220222Open filing evidence
2021-07-01 – 2021-09-301390800000 USD20211102Open filing evidence
2021-01-01 – 2021-09-303472800000 USD20211102Open filing evidence
2021-04-01 – 2021-06-301225300000 USD20210729Open filing evidence
2021-01-01 – 2021-06-302082000000 USD20210729Open filing evidence
2021-01-01 – 2021-03-31856600000 USD20220503Open filing evidence
2020-01-01 – 2020-12-314211200000 USD20220222Open filing evidence
2020-07-01 – 2020-09-301185500000 USD20211102Open filing evidence
2020-01-01 – 2020-09-303157200000 USD20211102Open filing evidence
2020-04-01 – 2020-06-301140600000 USD20210729Open filing evidence
2020-01-01 – 2020-06-301971700000 USD20210729Open filing evidence

Building Materials Business · Operating Segments · Reportable Subsegments · Aggregates

Statement Business Segments · Consolidation Items · Subsegments Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;srt:ProductOrServiceAxis=mlm:AggregatesMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31885000000 USD20240430Open filing evidence
2022-01-01 – 2022-12-313879000000 USD20240223Open filing evidence
2021-01-01 – 2021-12-313344300000 USD20240223Open filing evidence

Building Materials Business · Operating Segments · Reportable Subsegments · Cement And Ready Mixed Concrete

Statement Business Segments · Consolidation Items · Subsegments Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:SubsegmentsConsolidationItemsAxis=us-gaap:ReportableSubsegmentsMember;srt:ProductOrServiceAxis=mlm:CementAndReadyMixedConcreteMember
PeriodValueUnitFiledEvidence
2024-01-01 – 2024-03-31265000000 USD20240430Open filing evidence
2023-01-01 – 2023-03-31340000000 USD20240430Open filing evidence

Building Materials Business · Products And Services

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-03-311077000000 USD20220503Open filing evidence
2021-07-01 – 2021-09-301390800000 USD20211102Open filing evidence
2021-01-01 – 2021-09-303472800000 USD20211102Open filing evidence
2021-04-01 – 2021-06-301225300000 USD20210729Open filing evidence
2021-01-01 – 2021-06-302082000000 USD20210729Open filing evidence
2021-01-01 – 2021-03-31856600000 USD20220503Open filing evidence
2020-07-01 – 2020-09-301185500000 USD20211102Open filing evidence
2020-01-01 – 2020-09-303157200000 USD20211102Open filing evidence
2020-04-01 – 2020-06-301140600000 USD20210729Open filing evidence
2020-01-01 – 2020-06-301971700000 USD20210729Open filing evidence

Building Materials Business · Cargo And Freight

Statement Business Segments · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2022-01-01 – 2022-12-31404200000 USD20230224Open filing evidence
2022-07-01 – 2022-09-30124500000 USD20221102Open filing evidence
2022-04-01 – 2022-06-30110800000 USD20220728Open filing evidence
2022-01-01 – 2022-03-3176800000 USD20220503Open filing evidence
2021-07-01 – 2021-09-3088100000 USD20221102Open filing evidence
2021-01-01 – 2021-09-30219800000 USD20221102Open filing evidence
2021-04-01 – 2021-06-3076800000 USD20210729Open filing evidence
2021-01-01 – 2021-06-30131600000 USD20220728Open filing evidence
2021-01-01 – 2021-03-3154900000 USD20220503Open filing evidence
2020-01-01 – 2020-12-31276000000 USD20230224Open filing evidence
2020-07-01 – 2020-09-3075000000 USD20211102Open filing evidence
2020-01-01 – 2020-09-30212900000 USD20211102Open filing evidence
2020-04-01 – 2020-06-3076400000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30137900000 USD20210729Open filing evidence

Building Materials Business Mid America Group · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMidAmericaGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-30392300000 USD20200728Open filing evidence
2020-01-01 – 2020-06-30653100000 USD20200728Open filing evidence

Building Materials Business Mid America Group · Operating Segments · Products And Services

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMidAmericaGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-30362900000 USD20200728Open filing evidence
2020-01-01 – 2020-06-30603900000 USD20200728Open filing evidence

Building Materials Business Mid America Group · Operating Segments · Cargo And Freight

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessMidAmericaGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-3029400000 USD20200728Open filing evidence
2020-01-01 – 2020-06-3049200000 USD20200728Open filing evidence

Building Materials Business Southeast Group · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessSoutheastGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-30142200000 USD20200728Open filing evidence
2020-01-01 – 2020-06-30263400000 USD20200728Open filing evidence

Building Materials Business Southeast Group · Operating Segments · Products And Services

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessSoutheastGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=mlm:ProductsAndServicesMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-30136800000 USD20200728Open filing evidence
2020-01-01 – 2020-06-30253700000 USD20200728Open filing evidence

Building Materials Business Southeast Group · Operating Segments · Cargo And Freight

Statement Business Segments · Consolidation Items · Product Or Service

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessSoutheastGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;srt:ProductOrServiceAxis=us-gaap:CargoAndFreightMember
PeriodValueUnitFiledEvidence
2020-04-01 – 2020-06-305400000 USD20200728Open filing evidence
2020-01-01 – 2020-06-309700000 USD20200728Open filing evidence

Building Materials Business West Group · Operating Segments

Statement Business Segments · Consolidation Items

Source dimensions us-gaap:StatementBusinessSegmentsAxis=mlm:BuildingMaterialsBusinessWestGroupMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember
PeriodValueUnitFiledEvidence
2026-04-01 – 2026-06-30823000000 USD20260730Open filing evidence
2026-01-01 – 2026-06-301208000000 USD20260730Open filing evidence
2026-01-01 – 2026-03-31384000000 USD20260430Open filing evidence
2025-01-01 – 2025-12-312515000000 USD20260219Open filing evidence
2025-07-01 – 2025-09-30762000000 USD20251104Open filing evidence
2025-01-01 – 2025-09-301889000000 USD20251104Open filing evidence
2025-04-01 – 2025-06-30641000000 RestatedUSD20260730Open filing evidence
2025-01-01 – 2025-06-30958000000 RestatedUSD20260730Open filing evidence
2025-01-01 – 2025-03-31317000000 RestatedUSD20260430Open filing evidence
2024-01-01 – 2024-12-312401000000 RestatedUSD20260219Open filing evidence
2024-07-01 – 2024-09-30711000000 RestatedUSD20251104Open filing evidence
2024-01-01 – 2024-09-301809000000 RestatedUSD20251104Open filing evidence
2024-04-01 – 2024-06-30860000000 USD20250807Open filing evidence
2024-01-01 – 2024-06-301505000000 USD20250807Open filing evidence
2024-01-01 – 2024-03-31644000000 USD20250430Open filing evidence
2023-01-01 – 2023-12-312773000000 RestatedUSD20260219Open filing evidence
2023-07-01 – 2023-09-301104000000 USD20241030Open filing evidence
2023-01-01 – 2023-09-302851000000 USD20241030Open filing evidence
2023-04-01 – 2023-06-301005000000 USD20240808Open filing evidence
2023-01-01 – 2023-06-301746000000 USD20240808Open filing evidence
2023-01-01 – 2023-03-31741000000 USD20240430Open filing evidence
2022-01-01 – 2022-12-313389000000 RestatedUSD20250221Open filing evidence
2022-01-01 – 2022-03-31735000000 USD20220503Open filing evidence
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2021-01-01 – 2021-09-301978200000 USD20211102Open filing evidence
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2021-01-01 – 2021-03-31516600000 USD20220503Open filing evidence
2020-07-01 – 2020-09-30711200000 USD20211102Open filing evidence
2020-01-01 – 2020-09-301904200000 USD20211102Open filing evidence
2020-04-01 – 2020-06-30682500000 USD20210729Open filing evidence
2020-01-01 – 2020-06-301193100000 USD20210729Open filing evidence

Building Materials Business West Group · Operating Segments · Products And Services

Statement Business Segments · Consolidation Items · Product Or Service

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2021-01-01 – 2021-06-301112900000 USD20210729Open filing evidence
2021-01-01 – 2021-03-31484100000 USD20220503Open filing evidence
2020-07-01 – 2020-09-30671400000 USD20211102Open filing evidence
2020-01-01 – 2020-09-301785400000 USD20211102Open filing evidence
2020-04-01 – 2020-06-30640900000 USD20210729Open filing evidence
2020-01-01 – 2020-06-301114100000 USD20210729Open filing evidence

Building Materials Business West Group · Operating Segments · Cargo And Freight

Statement Business Segments · Consolidation Items · Product Or Service

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PeriodValueUnitFiledEvidence
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2021-01-01 – 2021-06-3070500000 USD20210729Open filing evidence
2021-01-01 – 2021-03-3132500000 USD20220503Open filing evidence
2020-07-01 – 2020-09-3039800000 USD20211102Open filing evidence
2020-01-01 – 2020-09-30118800000 USD20211102Open filing evidence
2020-04-01 – 2020-06-3041600000 USD20210729Open filing evidence
2020-01-01 – 2020-06-3079000000 USD20210729Open filing evidence

Building Materials Business West Group · Service · Colorado And California

Statement Business Segments · Product Or Service · Statement Geographical

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2025-01-01 – 2025-03-3136000000 USD20260430Open filing evidence

Building Materials Business West Group · California And Colorado · Service

Statement Business Segments · Statement Geographical · Product Or Service

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2022-01-01 – 2022-12-31354000000 RestatedUSD20250221Open filing evidence
2021-01-01 – 2021-12-31259100000 USD20240223Open filing evidence

Building Materials Business West Group · Colorado And British Columbia · Service

Statement Business Segments · Statement Geographical · Product Or Service

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PeriodValueUnitFiledEvidence
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Magnesia Specialties · Operating Segments

Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
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2021-01-01 – 2021-06-30146700000 USD20210729Open filing evidence
2021-01-01 – 2021-03-3170900000 USD20220503Open filing evidence
2020-07-01 – 2020-09-3060900000 USD20211102Open filing evidence
2020-01-01 – 2020-09-30180200000 USD20211102Open filing evidence
2020-04-01 – 2020-06-3053600000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30119300000 USD20210729Open filing evidence

Magnesia Specialties · Operating Segments · Products And Services

Statement Business Segments · Consolidation Items · Product Or Service

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PeriodValueUnitFiledEvidence
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2021-07-01 – 2021-09-3071900000 USD20211102Open filing evidence
2021-01-01 – 2021-09-30207100000 USD20211102Open filing evidence
2021-04-01 – 2021-06-3070000000 USD20210729Open filing evidence
2021-01-01 – 2021-06-30135200000 USD20210729Open filing evidence
2021-01-01 – 2021-03-3165300000 USD20220503Open filing evidence
2020-07-01 – 2020-09-3055200000 USD20211102Open filing evidence
2020-01-01 – 2020-09-30164000000 USD20211102Open filing evidence
2020-04-01 – 2020-06-3048900000 USD20210729Open filing evidence
2020-01-01 – 2020-06-30108800000 USD20210729Open filing evidence

Magnesia Specialties · Operating Segments · Cargo And Freight

Statement Business Segments · Consolidation Items · Product Or Service

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PeriodValueUnitFiledEvidence
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2021-04-01 – 2021-06-305800000 USD20210729Open filing evidence
2021-01-01 – 2021-06-3011500000 USD20210729Open filing evidence
2021-01-01 – 2021-03-315600000 USD20220503Open filing evidence
2020-07-01 – 2020-09-305700000 USD20211102Open filing evidence
2020-01-01 – 2020-09-3016200000 USD20211102Open filing evidence

Magnesia Specialties · Operating Segments · Products And Services

Statement Business Segments · Consolidation Items · Subsegments

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PeriodValueUnitFiledEvidence
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2021-01-01 – 2021-09-30207100000 USD20211102Open filing evidence
2021-04-01 – 2021-06-3070000000 USD20210729Open filing evidence
2021-01-01 – 2021-06-30135200000 USD20210729Open filing evidence
2021-01-01 – 2021-03-3165300000 USD20220503Open filing evidence
2020-01-01 – 2020-12-31220900000 USD20220222Open filing evidence
2020-07-01 – 2020-09-3055200000 USD20211102Open filing evidence
2020-01-01 – 2020-09-30164000000 USD20211102Open filing evidence

Specialties · Operating Segments

Statement Business Segments · Consolidation Items

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PeriodValueUnitFiledEvidence
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2025-04-01 – 2025-06-3090000000 USD20260730Open filing evidence
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2024-01-01 – 2024-09-30243000000 USD20251104Open filing evidence
2023-01-01 – 2023-12-31315000000 USD20260219Open filing evidence