Fundies. English
Segment disclosures
Company overviewASGN Inc
Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.
Revenue · Reported segment facts
74 dimension combinations 746 retained observations 33 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.
Assignment · Operating Segments · Commercial Business
Revenue Type · Consolidation Items · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:AssignmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 1740500000 | USD | 20250224 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 2078900000 | USD | 20250224 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 2476100000 | USD | 20250224 | Open filing evidence |
Assignment · Operating Segments · Federal Government Business
Revenue Type · Consolidation Items · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:AssignmentMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 0 | USD | 20250224 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20250224 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 0 | USD | 20250224 | Open filing evidence |
Assignment · Apex Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:AssignmentMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-01-01 – 2020-12-31 | 2040300000 | USD | 20210301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 492200000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 1502300000 | USD | 20201109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 483800000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 1010100000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 615900000 | USD | 20200511 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 2190900000 Restated | USD | 20210301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 544700000 Restated | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 1598000000 Restated | USD | 20201109 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 533500000 Restated | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 1053300000 Restated | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 592200000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 2050100000 Restated | USD | 20210301 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 575200000 Restated | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 1653800000 Restated | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
Assignment · Commercial Business
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:AssignmentMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-07-01 – 2024-09-30 | 433800000 | USD | 20241031 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1332500000 | USD | 20241031 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 444200000 | USD | 20240801 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 898700000 | USD | 20240801 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 454500000 | USD | 20240502 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 2078900000 | USD | 20240223 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 508200000 | USD | 20241031 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 1598800000 | USD | 20241031 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 530200000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 1090600000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 560400000 | USD | 20240502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 2476100000 | USD | 20240223 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 628400000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 1256600000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 628200000 | USD | 20230504 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 2285900000 | USD | 20240223 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 568100000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 1099800000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 531700000 | USD | 20220510 | Open filing evidence |
Assignment · Oxford Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:AssignmentMember;us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-04-01 – 2020-06-30 | 96200000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 211100000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 128100000 | USD | 20200511 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 522700000 | USD | 20200302 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 130300000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 391100000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 117100000 Restated | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 234700000 Restated | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 129400000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 516000000 Restated | USD | 20200302 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 130400000 Restated | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 386100000 Restated | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
Consulting · Operating Segments · Commercial Business
Revenue Type · Consolidation Items · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ConsultingMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 1128200000 | USD | 20250224 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1095500000 | USD | 20250224 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 959600000 | USD | 20250224 | Open filing evidence |
Consulting · Apex Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ConsultingMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-03-31 | 117600000 | USD | 20210507 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 96600000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 271500000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 89600000 | USD | 20210507 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 85100000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 237000000 | USD | 20201109 | Open filing evidence |
Consulting · Commercial Business
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ConsultingMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-07-01 – 2024-09-30 | 285000000 | USD | 20241031 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 843500000 | USD | 20241031 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 281500000 | USD | 20240801 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 558500000 | USD | 20240801 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 274200000 | USD | 20241031 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 827000000 | USD | 20241031 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 281100000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 552800000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 271700000 | USD | 20230504 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 268600000 | USD | 20221107 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 695500000 | USD | 20221107 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 222200000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 426900000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 204700000 | USD | 20230504 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 187600000 | USD | 20221107 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 449500000 | USD | 20221107 | Open filing evidence |
Consulting · Oxford Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ConsultingMember;us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-03-31 | 20100000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 13200000 | USD | 20210507 | Open filing evidence |
Contractrevenue Domain · Apex Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ContractrevenueDomain;us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-04-01 – 2020-06-30 | 569100000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 1185000000 | USD | 20200810 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 613000000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 1205200000 | USD | 20200810 | Open filing evidence |
Contractrevenue Domain · Oxford Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ContractrevenueDomain;us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-04-01 – 2020-06-30 | 107300000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 235400000 | USD | 20200810 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 131400000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 260800000 | USD | 20200810 | Open filing evidence |
Costplusfixedfee Contract · ECS
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:CostplusfixedfeeContractMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 387800000 | USD | 20220301 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 106600000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 409600000 | USD | 20220301 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 94800000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 178100000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 83300000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 316400000 | USD | 20220301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 73300000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 210300000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 73700000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 137000000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 63300000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 216500000 Restated | USD | 20210301 | Open filing evidence |
| 2018-07-01 – 2018-09-30 | 73700000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 135000000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
Costplusfixedfee Contract · ECS Segment Member Domain
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:CostplusfixedfeeContractMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ECSSegmentMemberDomain| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2018-07-01 – 2018-09-30 | 73657000 | USD | 20181109 | Open filing evidence |
| 2018-01-01 – 2018-09-30 | 135050000 | USD | 20181109 | Open filing evidence |
Costplusfixedfee Contract · Federal Government Business
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:CostplusfixedfeeContractMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 106400000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 203000000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 96600000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 366900000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 98900000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 277300000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 98400000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 178400000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 80000000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 341300000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 91600000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 269500000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 80800000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 177900000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 97100000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 384600000 | USD | 20260225 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 100300000 | USD | 20241031 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 274900000 | USD | 20241031 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 92600000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 174600000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 82000000 | USD | 20240502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 357500000 | USD | 20250224 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 74200000 | USD | 20230504 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 100200000 | USD | 20210809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 206700000 | USD | 20210809 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 106600000 | USD | 20220510 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 94800000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 178100000 | USD | 20210809 | Open filing evidence |
I Tconsulting · Apex Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ITconsultingMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-04-01 – 2020-06-30 | 85300000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 174900000 | USD | 20200810 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 79500000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 151900000 | USD | 20200810 | Open filing evidence |
I Tconsulting · Oxford Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:ITconsultingMember;us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-04-01 – 2020-06-30 | 11100000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 24300000 | USD | 20200810 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 14300000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 26100000 | USD | 20200810 | Open filing evidence |
Permanentplacement Domain · Apex Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:PermanentplacementDomain;us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-04-01 – 2020-06-30 | 7800000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 21000000 | USD | 20200810 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 15500000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 29400000 | USD | 20200810 | Open filing evidence |
Permanentplacement Domain · Oxford Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:PermanentplacementDomain;us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-04-01 – 2020-06-30 | 12900000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 33500000 | USD | 20200810 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 21800000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 42000000 | USD | 20200810 | Open filing evidence |
Permanent Placement · Apex Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:PermanentPlacementMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-07-01 – 2020-09-30 | 7300000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 28300000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 13200000 | USD | 20200511 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 56400000 | USD | 20200302 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 14300000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 43700000 | USD | 20201109 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 15500000 | USD | 2019-08-08 · 21:28:31.000Z | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 29400000 | USD | 2019-08-08 · 21:28:31.000Z | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 13900000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 55800000 Restated | USD | 20200302 | Open filing evidence |
Permanent Placement · Oxford Segment
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=asgn:PermanentPlacementMember;us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-01-01 – 2020-03-31 | 20600000 | USD | 20200511 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 83000000 | USD | 20200302 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 22200000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 64200000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 21800000 | USD | 2019-08-08 · 21:28:31.000Z | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 42000000 | USD | 2019-08-08 · 21:28:31.000Z | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 20200000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 90500000 Restated | USD | 20200302 | Open filing evidence |
Fixed Price Contract · ECS
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=us-gaap:FixedPriceContractMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 295600000 | USD | 20220301 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 60500000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 272000000 | USD | 20220301 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 63500000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 120500000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 57000000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 214000000 | USD | 20220301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 64400000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 153800000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 46100000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 89400000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 43300000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 133100000 Restated | USD | 20200302 | Open filing evidence |
Fixed Price Contract · Federal Government Business
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=us-gaap:FixedPriceContractMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 83300000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 173500000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 90200000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 348700000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 84200000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 260200000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 86000000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 176000000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 90000000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 367700000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 92600000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 273800000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 92000000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 181200000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 89200000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 386700000 | USD | 20260225 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 107300000 | USD | 20241031 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 297900000 | USD | 20241031 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 97800000 | USD | 20230803 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 190600000 | USD | 20230803 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 92800000 | USD | 20240502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 331600000 | USD | 20250224 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 91700000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 242900000 | USD | 20231102 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 74300000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 151200000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 76900000 | USD | 20230504 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 94500000 | USD | 20221107 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 217000000 | USD | 20221107 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 62000000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 122600000 | USD | 20220809 | Open filing evidence |
Time And Materials Contract · ECS
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=us-gaap:TimeAndMaterialsContractMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-03-31 | 90700000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 322600000 | USD | 20210301 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 81400000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 153800000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 72400000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 267800000 | USD | 20210301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 68400000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 200600000 | USD | 2019-11-08 · 21:44:18.000Z | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 70800000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 132200000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 61400000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 143400000 Restated | USD | 20210301 | Open filing evidence |
Time And Materials Contract · Federal Government Business
Revenue Type · Statement Business Segments
Source dimensions
asgn:RevenueTypeAxis=us-gaap:TimeAndMaterialsContractMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 115600000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 221600000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 106000000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 474600000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 117000000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 371200000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 128100000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 254200000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 126100000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 522000000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 128000000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 395400000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 136200000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 267400000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 131200000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 504900000 | USD | 20260225 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 126800000 | USD | 20241031 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 377900000 | USD | 20241031 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 129200000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 251100000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 121900000 | USD | 20240502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 456300000 | USD | 20250224 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 107000000 | USD | 20230504 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 90700000 | USD | 20220510 | Open filing evidence |
Operating Segments · Assignment · Commercial Business
Consolidation Items · Revenue Type · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;asgn:RevenueTypeAxis=asgn:AssignmentMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 1500100000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 376400000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 1140900000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 382400000 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 764500000 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 382100000 | USD | 20250501 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1740500000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 433800000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1332500000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 444200000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 898700000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 454500000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 2078900000 | USD | 20260225 | Open filing evidence |
Operating Segments · Assignment · Federal Government Business
Consolidation Items · Revenue Type · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;asgn:RevenueTypeAxis=asgn:AssignmentMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-07-01 – 2025-09-30 | 0 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20250501 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250501 | Open filing evidence |
Operating Segments · Consulting · Commercial Business
Consolidation Items · Revenue Type · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;asgn:RevenueTypeAxis=asgn:ConsultingMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 1290100000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 334900000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 950700000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 325700000 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 615800000 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 290100000 | USD | 20250501 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1128200000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 285000000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 843500000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 281500000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 558500000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 277000000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1095500000 | USD | 20260225 | Open filing evidence |
Operating Segments · Consulting · Federal Government Business
Consolidation Items · Revenue Type · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;asgn:RevenueTypeAxis=asgn:ConsultingMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 1190200000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 300100000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 908700000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 312500000 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 608600000 | USD | 20250730 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 296100000 | USD | 20250501 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1231000000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 312200000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 938700000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 309000000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 626500000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 317500000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1276200000 | USD | 20260225 | Open filing evidence |
Operating Segments · Commercial Business
Consolidation Items · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 701700000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 1377200000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 675500000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 2790200000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 711300000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 2091600000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 708100000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1380300000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 672200000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 2868700000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 718800000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 2176000000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 725700000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1457200000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 731500000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 3174400000 | USD | 20260225 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 3435700000 | USD | 20250224 | Open filing evidence |
Operating Segments · Federal Government Business
Consolidation Items · Statement Business Segments
Source dimensions
srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 305300000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 598100000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 292800000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 1190200000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 300100000 | USD | 20251030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 908700000 | USD | 20251030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 312500000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 608600000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 296100000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1231000000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 312200000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 938700000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 309000000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 626500000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 317500000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1276200000 | USD | 20260225 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 1145400000 | USD | 20250224 | Open filing evidence |
Commercialandother · ECS
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:CommercialandotherMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-01-01 – 2020-12-31 | 75100000 | USD | 20210301 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 50700000 | USD | 20210301 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 31100000 | USD | 20210301 | Open filing evidence |
Commercialandother · Federal Government Business
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:CommercialandotherMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 43500000 | USD | 20250224 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 40000000 | USD | 20250224 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 35700000 | USD | 20250224 | Open filing evidence |
Departmentofdefenseandintelligenceagencies · ECS
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:DepartmentofdefenseandintelligenceagenciesMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 589700000 | USD | 20220301 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 558500000 | USD | 20220301 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 453900000 | USD | 20220301 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 311000000 | USD | 20210301 | Open filing evidence |
Departmentofdefenseandintelligenceagencies · Federal Government Business
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:DepartmentofdefenseandintelligenceagenciesMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 526000000 | USD | 20260225 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 560100000 | USD | 20260225 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 614600000 | USD | 20260225 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 606300000 | USD | 20250224 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 589700000 | USD | 20240223 | Open filing evidence |
Department Of Defense Intelligence Agencies · Federal Government Business
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:DepartmentOfDefenseIntelligenceAgenciesMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 121500000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 369800000 | USD | 20261030 | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 127200000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 248300000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 121100000 | USD | 20260430 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 130700000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 395800000 | USD | 20261030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 136200000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 265100000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 128900000 | USD | 20260430 | Open filing evidence |
Federalcivilian · ECS
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:FederalcivilianMember;us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 421800000 | USD | 20220301 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 370600000 | USD | 20220301 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 293600000 | USD | 20220301 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 150900000 | USD | 20210301 | Open filing evidence |
Federalcivilian · Federal Government Business
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:FederalcivilianMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 224900000 | USD | 20260225 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 267200000 Restated | USD | 20260225 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 261600000 Restated | USD | 20260225 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 503400000 | USD | 20250224 | Open filing evidence |
Federal Civilian · Federal Government Business
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:FederalCivilianMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 61500000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 167400000 | USD | 20261030 | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 51300000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 105900000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 54600000 | USD | 20260430 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 57100000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 176900000 | USD | 20261030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 57800000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 119800000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 62000000 | USD | 20260430 | Open filing evidence |
National Security · Federal Government Business
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:NationalSecurityMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 99800000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 278600000 | USD | 20261030 | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 94200000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 178800000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 84600000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 310000000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 80700000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 242100000 | USD | 20261030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 87300000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 161400000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 74100000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 279400000 | USD | 20260225 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 276200000 | USD | 20260225 | Open filing evidence |
Other Federal · Federal Government Business
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=asgn:OtherFederalMember;us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 28700000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 93800000 | USD | 20261030 | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 32600000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 65100000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 32500000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 129300000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 31600000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 93900000 | USD | 20261030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 31200000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 62300000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 31100000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 124300000 | USD | 20260225 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 123800000 | USD | 20260225 | Open filing evidence |
Business Services Sector · Commercial Business
Equity Securities By Industry · Statement Business Segments
Source dimensions
us-gaap:EquitySecuritiesByIndustryAxis=asgn:BusinessServicesSectorMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 76800000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 147200000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 70400000 | USD | 20260430 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 82200000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 165200000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 83000000 | USD | 20260430 | Open filing evidence |
Consumer And Industrial Sector · Commercial Business
Equity Securities By Industry · Statement Business Segments
Source dimensions
us-gaap:EquitySecuritiesByIndustryAxis=asgn:ConsumerAndIndustrialSectorMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 230800000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 454800000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 224000000 | USD | 20260430 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 235100000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 449300000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 214200000 | USD | 20260430 | Open filing evidence |
Technology Media And Telecommunications Sector · Commercial Business
Equity Securities By Industry · Statement Business Segments
Source dimensions
us-gaap:EquitySecuritiesByIndustryAxis=asgn:TechnologyMediaAndTelecommunicationsSectorMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 144700000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 282900000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 138200000 | USD | 20260430 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 137000000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 270200000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 133200000 | USD | 20260430 | Open filing evidence |
Financial Services Sector · Commercial Business
Equity Securities By Industry · Statement Business Segments
Source dimensions
us-gaap:EquitySecuritiesByIndustryAxis=us-gaap:FinancialServicesSectorMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 132500000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 259300000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 126800000 | USD | 20260430 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 135800000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 270200000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 134400000 | USD | 20260430 | Open filing evidence |
Healthcare Sector · Commercial Business
Equity Securities By Industry · Statement Business Segments
Source dimensions
us-gaap:EquitySecuritiesByIndustryAxis=us-gaap:HealthcareSectorMember;us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 116900000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 233000000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 116100000 | USD | 20260430 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 118000000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 225400000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 107400000 | USD | 20260430 | Open filing evidence |
Apex Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 2927100000 | USD | 20220301 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 630400000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 2497900000 Restated | USD | 20220301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 596100000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 1802100000 | USD | 20201109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 576900000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 1206000000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 629100000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 2617400000 Restated | USD | 20220301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 644100000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 1878700000 | USD | 20201109 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 628500000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 1234600000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 606100000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 2300300000 Restated | USD | 20210301 | Open filing evidence |
Apex Segment · Assignment
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember;asgn:RevenueTypeAxis=asgn:AssignmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 2285900000 | USD | 20220301 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 512800000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 2117000000 | USD | 20220301 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 539500000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 2288300000 | USD | 20220301 | Open filing evidence |
Apex Segment · Consulting
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ApexSegmentMember;asgn:RevenueTypeAxis=asgn:ConsultingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 641200000 | USD | 20220301 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 380900000 | USD | 20220301 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 329100000 | USD | 20220301 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 250200000 | USD | 20210301 | Open filing evidence |
Commercial Business
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 719900000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 2097100000 | USD | 20261030 | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 701700000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 1377200000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 675500000 | USD | 20260430 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 711300000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 2091600000 | USD | 20261030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 708100000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1380300000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 672200000 | USD | 20260430 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 718800000 | USD | 20241031 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 2176000000 | USD | 20241031 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 725700000 | USD | 20240801 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1457200000 | USD | 20240801 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 731500000 | USD | 20240502 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 3174400000 | USD | 20240223 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 782400000 | USD | 20241031 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 2425800000 | USD | 20241031 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 811300000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 1643400000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 832100000 | USD | 20240502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 3435700000 | USD | 20240223 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 900000000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 2583500000 | USD | 20231102 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 850600000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 1683500000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 832900000 | USD | 20230504 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 2927100000 | USD | 20240223 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 774900000 | USD | 20221107 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 2136700000 | USD | 20221107 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 712500000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 1361700000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 649200000 | USD | 20220510 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 2497900000 | USD | 20230227 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 615800000 | USD | 20211109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 1860700000 | USD | 20211109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 592200000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 1244900000 | USD | 20210809 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 2617400000 | USD | 20220301 | Open filing evidence |
Commercial Business · Assignment
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;asgn:RevenueTypeAxis=asgn:AssignmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-07-01 – 2023-09-30 | 508200000 | USD | 20231102 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 1598800000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 2476100000 | USD | 20230227 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 631400000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 1888000000 | USD | 20231102 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 2285900000 | USD | 20230227 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 587300000 | USD | 20221107 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 1687200000 | USD | 20221107 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 568100000 | USD | 20210809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 1099800000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 2117000000 | USD | 20230227 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 519200000 | USD | 20211109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 1589200000 | USD | 20211109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 506900000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 1070000000 | USD | 20210809 | Open filing evidence |
Commercial Business · Consulting
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;asgn:RevenueTypeAxis=asgn:ConsultingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 277000000 | USD | 20240502 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1095500000 | USD | 20240223 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 274200000 | USD | 20231102 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 827000000 | USD | 20231102 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 271700000 | USD | 20240502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 959600000 | USD | 20240223 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 268600000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 695500000 | USD | 20231102 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 222200000 | USD | 20220809 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 426900000 | USD | 20220809 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 204700000 | USD | 20220510 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 641200000 | USD | 20240223 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 187600000 | USD | 20211109 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 449500000 | USD | 20211109 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 144400000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 261900000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 117500000 | USD | 20220510 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 380900000 | USD | 20230227 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 96600000 | USD | 20211109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 271500000 | USD | 20211109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 85300000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 174900000 | USD | 20210809 | Open filing evidence |
Commercial Business · Operating Segments
Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 719900000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 2097100000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 711300000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 2091600000 | USD | 20261030 | Open filing evidence |
Commercial Business · Business Services Sector
Statement Business Segments · Equity Securities By Industry
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;us-gaap:EquitySecuritiesByIndustryAxis=asgn:BusinessServicesSectorMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 83100000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 230300000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 77500000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 242700000 | USD | 20261030 | Open filing evidence |
Commercial Business · Consumer And Industrial Sector
Statement Business Segments · Equity Securities By Industry
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;us-gaap:EquitySecuritiesByIndustryAxis=asgn:ConsumerAndIndustrialSectorMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 230600000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 685400000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 236000000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 685300000 | USD | 20261030 | Open filing evidence |
Commercial Business · Technology Media And Telecommunications Sector
Statement Business Segments · Equity Securities By Industry
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;us-gaap:EquitySecuritiesByIndustryAxis=asgn:TechnologyMediaAndTelecommunicationsSectorMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 157100000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 440000000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 137100000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 407300000 | USD | 20261030 | Open filing evidence |
Commercial Business · Financial Services Sector
Statement Business Segments · Equity Securities By Industry
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;us-gaap:EquitySecuritiesByIndustryAxis=us-gaap:FinancialServicesSectorMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 132300000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 391600000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 134900000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 405100000 | USD | 20261030 | Open filing evidence |
Commercial Business · Healthcare Sector
Statement Business Segments · Equity Securities By Industry
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:CommercialBusinessMember;us-gaap:EquitySecuritiesByIndustryAxis=us-gaap:HealthcareSectorMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 116800000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 349800000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 125800000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 351200000 | USD | 20261030 | Open filing evidence |
ECS
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 1082400000 | USD | 20220301 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 257800000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 1004200000 | USD | 20220301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 288600000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 741000000 | USD | 20201109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 239700000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 452400000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 212700000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 798200000 | USD | 20220301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 206100000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 564700000 | USD | 20201109 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 190600000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 358600000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 168000000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 493000000 Restated | USD | 20210301 | Open filing evidence |
ECS · Costplusfixedfee Contract
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember;asgn:RevenueTypeAxis=asgn:CostplusfixedfeeContractMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-07-01 – 2020-09-30 | 125800000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 305200000 | USD | 20201109 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 73300000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 210300000 | USD | 20201109 | Open filing evidence |
ECS · Fixed Price Contract
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember;asgn:RevenueTypeAxis=us-gaap:FixedPriceContractMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-01-01 – 2020-12-31 | 272000000 | USD | 20210301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 82000000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 201200000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 214000000 | USD | 20210301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 64400000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 153800000 | USD | 20201109 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 133100000 | USD | 20210301 | Open filing evidence |
ECS · Time And Materials Contract
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember;asgn:RevenueTypeAxis=us-gaap:TimeAndMaterialsContractMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 399000000 | USD | 20220301 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 322600000 | USD | 20220301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 80800000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 234600000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 267800000 | USD | 20220301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 68400000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 200600000 | USD | 20201109 | Open filing evidence |
ECS · Commercialandother
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:ECSMember;srt:MajorCustomersAxis=asgn:CommercialandotherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-12-31 | 70900000 | USD | 20220301 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 75100000 | USD | 20220301 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 50700000 | USD | 20220301 | Open filing evidence |
Federal Government Business
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 311500000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 909600000 | USD | 20261030 | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 305300000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 598100000 | USD | 20260731 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 292800000 | USD | 20260430 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 1190200000 | USD | 20260225 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 300100000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 908700000 | USD | 20261030 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 312500000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 608600000 | USD | 20260731 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 296100000 | USD | 20260430 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1231000000 | USD | 20260225 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 312200000 | USD | 20251030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 938700000 | USD | 20251030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 309000000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 626500000 | USD | 20250730 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 317500000 | USD | 20250501 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1276200000 | USD | 20260225 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 334400000 | USD | 20241031 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 950700000 | USD | 20241031 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 319600000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 616300000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-03-31 | 296700000 | USD | 20240502 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 1145400000 | USD | 20250224 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 297900000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 847200000 | USD | 20231102 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 291200000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 549300000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 258100000 | USD | 20230504 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 1082400000 | USD | 20240223 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 298900000 | USD | 20221107 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 819000000 | USD | 20221107 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 262400000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 520200000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 257800000 | USD | 20220510 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 1004200000 | USD | 20230227 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 288600000 | USD | 20211109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 741000000 | USD | 20211109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 239700000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 452400000 | USD | 20210809 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 798200000 | USD | 20220301 | Open filing evidence |
Federal Government Business · Costplusfixedfee Contract
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember;asgn:RevenueTypeAxis=asgn:CostplusfixedfeeContractMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 108500000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 311500000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 98900000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 277300000 | USD | 20261030 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 384600000 | USD | 20240223 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 100300000 | USD | 20231102 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 274900000 | USD | 20231102 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 92600000 | USD | 20230803 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 174600000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 357500000 | USD | 20240223 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 92500000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 265800000 | USD | 20231102 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 99100000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 173300000 | USD | 20230803 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 387800000 | USD | 20240223 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 98400000 | USD | 20221107 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 305100000 | USD | 20221107 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 100200000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 206700000 | USD | 20220809 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 409600000 | USD | 20230227 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 125800000 | USD | 20211109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 305200000 | USD | 20211109 | Open filing evidence |
Federal Government Business · Fixed Price Contract
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember;asgn:RevenueTypeAxis=us-gaap:FixedPriceContractMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 94700000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 268200000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 84200000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 260200000 | USD | 20261030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 92000000 | USD | 20240801 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 181200000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 386700000 | USD | 20240223 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 97800000 | USD | 20240801 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 190600000 | USD | 20240801 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 331600000 | USD | 20240223 | Open filing evidence |
| 2022-01-01 – 2022-03-31 | 76900000 | USD | 20220510 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 295600000 | USD | 20240223 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 94500000 | USD | 20211109 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 217000000 | USD | 20211109 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 62000000 | USD | 20210809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 122600000 | USD | 20210809 | Open filing evidence |
| 2021-01-01 – 2021-03-31 | 60500000 | USD | 20220510 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 272000000 | USD | 20230227 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 82000000 | USD | 20211109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 201200000 | USD | 20211109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 63500000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 120500000 | USD | 20210809 | Open filing evidence |
Federal Government Business · Time And Materials Contract
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember;asgn:RevenueTypeAxis=us-gaap:TimeAndMaterialsContractMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 108300000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 329900000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 117000000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 371200000 | USD | 20261030 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 504900000 | USD | 20240223 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 126800000 | USD | 20231102 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 377900000 | USD | 20231102 | Open filing evidence |
| 2023-04-01 – 2023-06-30 | 129200000 | USD | 20230803 | Open filing evidence |
| 2023-01-01 – 2023-06-30 | 251100000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 456300000 | USD | 20240223 | Open filing evidence |
| 2022-07-01 – 2022-09-30 | 113700000 | USD | 20231102 | Open filing evidence |
| 2022-01-01 – 2022-09-30 | 338500000 | USD | 20231102 | Open filing evidence |
| 2022-04-01 – 2022-06-30 | 117800000 | USD | 20230803 | Open filing evidence |
| 2022-01-01 – 2022-06-30 | 224800000 | USD | 20230803 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 399000000 | USD | 20240223 | Open filing evidence |
| 2021-07-01 – 2021-09-30 | 106000000 | USD | 20221107 | Open filing evidence |
| 2021-01-01 – 2021-09-30 | 296900000 | USD | 20221107 | Open filing evidence |
| 2021-04-01 – 2021-06-30 | 100200000 | USD | 20220809 | Open filing evidence |
| 2021-01-01 – 2021-06-30 | 190900000 | USD | 20220809 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 322600000 | USD | 20230227 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 80800000 | USD | 20211109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 234600000 | USD | 20211109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 81400000 | USD | 20210809 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 153800000 | USD | 20210809 | Open filing evidence |
Federal Government Business · Operating Segments
Statement Business Segments · Consolidation Items
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember;srt:ConsolidationItemsAxis=us-gaap:OperatingSegmentsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 311500000 | USD | 20261030 | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 909600000 | USD | 20261030 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 300100000 | USD | 20261030 | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 908700000 | USD | 20261030 | Open filing evidence |
Federal Government Business · Commercialandother
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember;srt:MajorCustomersAxis=asgn:CommercialandotherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 40000000 | USD | 20240223 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 35700000 | USD | 20240223 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 70900000 | USD | 20240223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 75100000 | USD | 20230227 | Open filing evidence |
Federal Government Business · Departmentofdefenseandintelligenceagencies
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember;srt:MajorCustomersAxis=asgn:DepartmentofdefenseandintelligenceagenciesMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2022-01-01 – 2022-12-31 | 606300000 | USD | 20230227 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 589700000 | USD | 20230227 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 558500000 | USD | 20230227 | Open filing evidence |
Federal Government Business · Federalcivilian
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:FederalGovernmentBusinessMember;srt:MajorCustomersAxis=asgn:FederalcivilianMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 621600000 | USD | 20240223 | Open filing evidence |
| 2022-01-01 – 2022-12-31 | 503400000 | USD | 20240223 | Open filing evidence |
| 2021-01-01 – 2021-12-31 | 421800000 | USD | 20240223 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 370600000 | USD | 20230227 | Open filing evidence |
Oxford Segment
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-03-31 | 137500000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 525200000 | USD | 20210301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 127200000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 396100000 | USD | 20201109 | Open filing evidence |
| 2020-04-01 – 2020-06-30 | 120200000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-06-30 | 268900000 | USD | 20200810 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 148700000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 605700000 | USD | 20210301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 152500000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 455300000 | USD | 20201109 | Open filing evidence |
| 2019-04-01 – 2019-06-30 | 153200000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-06-30 | 302800000 | USD | 20200810 | Open filing evidence |
| 2019-01-01 – 2019-03-31 | 149600000 | USD | 20200511 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 606500000 Restated | USD | 20210301 | Open filing evidence |
Oxford Segment · Assignment
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember;asgn:RevenueTypeAxis=asgn:AssignmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2021-01-01 – 2021-03-31 | 117400000 | USD | 20210507 | Open filing evidence |
| 2020-01-01 – 2020-12-31 | 468600000 | USD | 20210301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 95800000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 306900000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-03-31 | 135500000 | USD | 20210507 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 549400000 | USD | 20210301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 115300000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 350000000 | USD | 20201109 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 558100000 | USD | 20210301 | Open filing evidence |
Oxford Segment · Consulting
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember;asgn:RevenueTypeAxis=asgn:ConsultingMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-01-01 – 2020-12-31 | 56600000 | USD | 20210301 | Open filing evidence |
| 2020-07-01 – 2020-09-30 | 14100000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 38400000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-12-31 | 56300000 | USD | 20210301 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 15000000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 41100000 | USD | 20201109 | Open filing evidence |
| 2018-01-01 – 2018-12-31 | 48400000 | USD | 20210301 | Open filing evidence |
Oxford Segment · Permanent Placement
Statement Business Segments · Revenue Type
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=asgn:OxfordSegmentMember;asgn:RevenueTypeAxis=asgn:PermanentPlacementMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2020-07-01 – 2020-09-30 | 17300000 | USD | 20201109 | Open filing evidence |
| 2020-01-01 – 2020-09-30 | 50800000 | USD | 20201109 | Open filing evidence |
| 2019-07-01 – 2019-09-30 | 22200000 | USD | 20201109 | Open filing evidence |
| 2019-01-01 – 2019-09-30 | 64200000 | USD | 20201109 | Open filing evidence |