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Accounts and Income Taxes Payable and Accrued Liabilities - Accrued Liabilities (Detail) - USD ($) | Mar. 31, 2025 | Mar. 31, 2024
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Payables and Accruals [Abstract] |  |
Payroll, payroll taxes and employee benefits | $ 30,971,000 | $ 26,291,000
Customer deposits | 101,472,000 | 88,142,000
Accrued professional service fees | 11,004,000 | 9,838,000
Self-insurance accruals | 3,276,000 | 3,818,000
Deferred revenue | 30,809,000 | 29,961,000
Operating lease liabilities | 8,126,000 | 8,864,000
Other | 1,586,000 | 954,000
Total accrued liabilities | $ 187,244,000 | $ 167,868,000

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