Treasury Stock - Additional Information (Detail) - USD ($)	2 Months Ended	12 Months Ended
	May 28, 2021	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019	May 31, 2021
Class of Stock [Line Items]
Number of shares of common stock authorized to repurchase		38,000,000
Number of shares of common stock repurchased		367,961	822,353	582,159
Treasury stock, value, acquired, cost method		$ 32,671,000	$ 65,608,000	$ 35,167,000
Average price per share of common stock		$ 88.79	$ 79.78	$ 60.41
Subsequent Event [Member]
Class of Stock [Line Items]
Number of shares of common stock authorized to repurchase					1,000,000
Number of shares of common stock repurchased	64,752
Treasury stock, value, acquired, cost method	$ 7,400,000
Average price per share of common stock	$ 114.25