Accounts and Income Taxes Payable and Accrued Liabilities - Accrued Liabilities (Detail) - USD ($)	Mar. 31, 2023	Apr. 01, 2022	Mar. 31, 2022
Payables and Accruals [Abstract]
Payroll, payroll taxes and employee benefits	$ 22,170,000		$ 36,066,000
Customer deposits	80,022,000		69,781,000
Accrued professional service fees	8,601,000		8,073,000
Self-insurance accruals	3,563,000		2,798,000
Deferred revenue	26,978,000	$ 25,796,000	25,796,000
Operating lease liabilities	9,900,000		13,348,000
Other	1,344,000		1,077,000
Total accrued liabilities	$ 152,578,000		$ 156,939,000