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Income Taxes - Reconciliation of Income Taxes at Statutory Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Income Tax Disclosure [Abstract]
United States statutory income tax expense	$ 36,527	$ 35,729	$ 30,857
State income taxes, net of federal effect	1,724	4,000	2,764
Nondeductible expenses and other	1,217	5,273	5,953
Net effect of GILTI, FDII, BEAT	5,405	1,985	3,025
Goodwill impairment - See Note 7	0	0	10,714
Effect of foreign operations	(14,192)	(20,035)	(17,605)
Valuation allowance	2,951	5,533	4,349
Switzerland Tax Reform	0	(1,883)	(26,846)
Research and Development Credit	(3,604)	(3,841)	(3,390)
Total income tax expense	$ 30,028	$ 26,761	$ 9,821

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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