Subsequent Event - Additional Information (Detail) (Share Repurchase Program [Member], USD $) In Millions, unless otherwise specified	9 Months Ended	0 Months Ended
Sep. 27, 2014	Oct. 28, 2014 Subsequent Event [Member]	Oct. 28, 2014 Subsequent Event [Member]
Subsequent Event [Line Items]
Share repurchase program shares authorized to be repurchased	$ 50		$ 100
Share repurchase program expiration date	May 31, 2015	Dec. 31, 2015
Share repurchase program, remaining authorized amount	$ 10.7		$ 60.7

Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the CCYY-MM-DD format.

No definition available.

Name:	us-gaap_StockRepurchaseProgramExpirationDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration