Treasury Stock - Additional Information (Detail) - USD ($)		3 Months Ended
	Jul. 01, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Feb. 28, 2017
Class of Stock [Line Items]
Number of shares of common stock authorized to repurchase		36,000,000			1,000,000
Treasury stock, value		$ 434,475,000	$ 430,989,000
Treasury stock, shares		34,947,632	34,881,079	34,947,632
Average price per share of common stock		$ 52.38
Common stock, shares outstanding		18,891,907	18,912,907
Number of shares of common stock repurchased		66,553
Treasury stock, value, acquired, cost method		$ 3,500,000
Nineteen Ninety Six Share Repurchase Program [Member]
Class of Stock [Line Items]
Common stock equals to percentage of outstanding common stock		65.00%
Average price per share of common stock		$ 12.43
Subsequent Event [Member]
Class of Stock [Line Items]
Average price per share of common stock	$ 55.60
Number of shares of common stock repurchased	24,001
Treasury stock, value, acquired, cost method	$ 1,334,000