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Schedule of Reconciliation of Obligations and Fair Values of Plan Assets (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Compensation And Retirement Disclosure [Abstract] |  |  |
Benefit Obligation at April 1, | $ 35,844 | $ 36,701 |
Service Cost - Benefits Earned During the Period | 0 | 0 | $ 339
Interest Cost on Projected Benefit Obligation | 1,167 | 1,216 | 1,351
Actuarial (Gain) Loss | (1,776) | 1,714 |
Benefits Paid | (1,326) | (1,251) |
Sale of Business | 0 | 2,536 |
Benefit Obligation at March 31, | 33,909 | 35,844 | 36,701
Fair Value of Plan Assets at April 1, | 37,907 | 39,009 |
Actual Return on Plan Assets | (268) | 2,939 |
Benefits Paid | (1,326) | (1,251) |
Sale of Business |  | (2,790) |
Fair Value of Plan Assets at March 31, | 36,313 | 37,907 | $ 39,009
Funded Status at March 31, | 2,404 | 2,063 |
Other Assets | 2,404 | 2,063 |
Accumulated Other Comprehensive Losses - Net Actuarial Loss | 4,172 | 4,524 |
Accumulated Other Comprehensive Losses - Prior Service Cost | 0 | 0 |
Accumulated Other Comprehensive Losses | 4,172 | 4,524 |
Tax impact | (997) | (1,084) |
Accumulated Other Comprehensive Losses, net of tax | $ 3,175 | $ 3,440 |

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