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v3.21.1

Segment Information - Summary of Revenues by Business Lines (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Segment Reporting Information [Line Items] |  |
Revenues | $ 874,697 | $ 970,993
Federal Solution Segment |  |
Segment Reporting Information [Line Items] |  |
Revenues | 452,069 | 477,571
Federal Solution Segment | Cyber & Intelligence |  |
Segment Reporting Information [Line Items] |  |
Revenues | 83,328 | 98,882
Federal Solution Segment | Space & Geospatial Solutions |  |
Segment Reporting Information [Line Items] |  |
Revenues | 83,059 | 51,288
Federal Solution Segment | Missile Defense & C5ISR |  |
Segment Reporting Information [Line Items] |  |
Revenues | 144,715 | 154,569
Federal Solution Segment | Engineered Systems |  |
Segment Reporting Information [Line Items] |  |
Revenues | 140,967 | 172,832
Critical Infrastructure |  |
Segment Reporting Information [Line Items] |  |
Revenues | 422,628 | 493,422
Critical Infrastructure | Mobility Solutions |  |
Segment Reporting Information [Line Items] |  |
Revenues | 332,745 | 391,521
Critical Infrastructure | Connected Communities |  |
Segment Reporting Information [Line Items] |  |
Revenues | $ 89,883 | $ 101,901

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