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Stockholders’ Equity - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Class of Stock [Line Items] |  |  |
Preferred stock, shares authorized (in shares) | 1,000,000 | 1,000,000 |
Preferred stock, par value (usd per share) | $ 0.01 | $ 0.01 |
Preferred stock, shares issued (in shares) | 0 | 0 |
Preferred stock, shares outstanding (in shares) | 0 | 0 |
Number of shares of common stock purchased (in shares) | 1,996,334 | 0 | 581,140
Repurchased common stock value | $ 156,366,000 |  | $ 34,561,000
Treasury stock, shares (in shares) | 14,762,266 | 12,799,790 |
Shares issued in ESPP (USD per share) | $ 62.55 | $ 62.55 | $ 62.55
Common Stock | Alpha |  |  |
Class of Stock [Line Items] |  |  |
Shares issued in employee stock purchase plan (in shares) | 13,858 | 13,465 | 17,410

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