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Revenue Recognition (Revenue disaggregated by timing of revenue recognition) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Revenue From Contract With Customer [Abstract] |  |  |
Revenues recognized over time | $ 284,401 | $ 182,278 | $ 147,565
Revenues recognized at point in time | 414,985 | 396,600 | 309,804
Total revenues recognized under ASC 606 | 699,386 | 578,878 | 457,369
Revenues recognized under ASC 840 | 4,690,434 | 3,644,798 | 3,182,902
Revenues recognized under ASC 944 | 201,666 | 195,371 | 200,768
Revenues recognized under ASC 320 | 148,261 | 122,938 | 137,829
Total revenues | $ 5,739,747 | $ 4,541,985 | $ 3,978,868

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. 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