Income Taxes - Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Balance at beginning of year	$ 3,343	$ 5,681	$ 7,593
Tax positions taken in current year			164
Decreases in tax positions for prior years		(1,398)	(198)
Increases in tax positions for prior years	105	1,907	136
Settlements	(284)	(124)	(200)
Lapse of statute of limitations	(1,640)	(2,589)	(1,595)
Increase in foreign translation adjustment	162
Decrease in foreign translation adjustment		(134)	(219)
Balance at end of year	$ 1,686	$ 3,343	$ 5,681