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Acquisition - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Mar. 06, 2020 | Aug. 02, 2019 | Mar. 31, 2021 | Mar. 31, 2020 | Mar. 31, 2019
Business Acquisition [Line Items] |  |  |  |  |
Purcahse price of acquisition |  |  |  | $ 699,361 |
Income tax expense (benefit) |  |  | $ 89,946 | 24,504 | $ 60,272
Kosmos Acquisition [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Date of acquisition of business | Mar. 06, 2020 |  |  |  |
Purcahse price of acquisition | $ 668,900 |  |  |  |
Depreciation and amortization |  |  | 21,700 | 1,800 |
Inventories |  |  | 3,700 | $ 1,700 |
Nonrecurring charges |  |  | 5,600 |  |
Income tax expense (benefit) |  |  | $ 31,700 |  |
ConAgg Acquisition [Member] |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Date of acquisition of business |  | Aug. 02, 2019 |  |  |
Purcahse price of acquisition |  | $ 30,400 |  |  |

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