Treasury Stock - Additional Information (Detail) - USD ($)		3 Months Ended		9 Months Ended
	Jan. 01, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019	Feb. 28, 2019
Class of Stock [Line Items]
Number of shares of common stock authorized to repurchase		37,000,000		37,000,000			1,000,000
Treasury stock, value		$ 513,668,000		$ 513,668,000		$ 466,156,000
Treasury stock, shares		36,052,141		36,052,141		35,463,238
Average price per share of common stock		$ 79.98		$ 82.66
Common stock, shares outstanding		18,152,615		18,152,615		18,557,794
Number of shares of common stock repurchased		240,026		588,903
Treasury stock, value, acquired, cost method		$ 19,196,000	$ 11,289,000	$ 47,512,000	$ 22,591,000
Nineteen Ninety Six Share Repurchase Program [Member]
Class of Stock [Line Items]
Common stock equals to percentage of outstanding common stock				67.00%
Average price per share of common stock				$ 14.25
Subsequent Event [Member]
Class of Stock [Line Items]
Average price per share of common stock	$ 92.80
Number of shares of common stock repurchased	71,102
Treasury stock, value, acquired, cost method	$ 6,599,000