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v3.24.1.1.u2

Commitments and Contingencies (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
Jul. 21, 2023 | Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022 | Jun. 30, 2023
Concentration Risk [Line Items] |  |  |  |  |
Operating income (loss) |  | $ 1,013,403 | $ 446,848 | $ 685,181 |
Net income |  | $ 605,706 | $ 271,791 | $ 466,740 |
Basic (in dollars per share) |  | $ 4.61 | $ 2.04 | $ 3.46 |
Diluted (in dollars per share) |  | $ 4.59 | $ 2.03 | $ 3.44 |
Claimed Indirect Costs |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Decrease in reserve |  | $ 18,300 |  |  |
Claimed Indirect Costs | Unfavorable Regulatory Action |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Provision for claimed indirect costs |  | 363,700 | $ 326,700 |  |
Claimed Indirect Costs | Revision of Prior Period, Adjustment |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Operating income (loss) |  | 18,300 |  |  |
Net income |  | $ 13,500 |  |  |
Basic (in dollars per share) |  | $ 0.10 |  |  |
Diluted (in dollars per share) |  | $ 0.10 |  |  |
U.S. Department of Justice |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Estimate of possible loss |  |  | $ 350,000 |  | $ 377,500
U.S. Department of Justice | Minimum |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Estimate of possible loss |  |  |  |  | 350,000
U.S. Department of Justice | Maximum |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Estimate of possible loss |  |  |  |  | $ 378,000
U.S. Department of Justice | Unfavorable Regulatory Action |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Amount awarded to other party | $ 377,500 |  |  |  |
Total U.S. government | Revenue Benchmark | Contracts with U.S. Government Agencies or Other U.S. Government Contractors |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk (as a percent) |  | 98.00% | 97.00% | 97.00% |
Financial Standby Letter of Credit |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Guarantor obligations, carrying value |  | $ 4,400 | $ 6,100 |  |
Guarantor obligations, reduction to available borrowings |  | 1,300 |  |  |
Guarantor obligations, facility |  | 7,500 |  |  |
Guarantor obligations, available amount |  | $ 4,400 | $ 2,700 |  |

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