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Stock Plans - Summary of Treasury Share Transactions Under the Company's Stock Repurchase Program (Details) - USD ($) $ in Thousands | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Equity, Class of Treasury Stock [Line Items] |  |
Treasury shares at the beginning of period, Number of Shares | 5,368,000 |
Treasury shares at the end of period, Number of Shares | 5,368,000 | 5,368,000
New Stock Repurchase Program [Member] |  |
Equity, Class of Treasury Stock [Line Items] |  |
Treasury shares at the beginning of period, Number of Shares | 5,368,000 | 5,127,000
Treasury shares purchased, Number of Shares | 0 | 241,000
Treasury shares at the end of period, Number of Shares | 5,368,000 | 5,368,000
Treasury shares at the beginning of period, Amount | $ (76,794) | $ (74,405)
Treasury shares purchased, Amount | 0 | (2,389)
Treasury shares at the end of period, Amount | $ (76,794) | $ (76,794)

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