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Schedule of Expected Benefit Payments (Detail) $ in Thousands	Mar. 31, 2020 USD ($)
Compensation And Retirement Disclosure [Abstract]
2021	$ 1,586
2022	1,673
2023	1,721
2024	1,765
2025	1,892
2026-2030	$ 10,197

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.

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