Treasury Stock - Additional Information (Detail) - USD ($)	Sep. 27, 2019	Jan. 31, 2019	Oct. 19, 2016
Equity [Abstract]
Stock Repurchase Program, Authorized Amount		$ 75,000,000	$ 35,000,000
Remaining authorized amount for repurchase of common stock	$ 92,462,000

Amount remaining of a stock repurchase plan authorized.

No definition available.

Name:	us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant