Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended		1 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Mar. 14, 2014 JADAK
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Cash			$ 1,140
Accounts receivable			7,907
Inventory			7,526
Property and equipment			904
Intangible assets			40,250
Other assets			1,979
Goodwill	44,428		44,428
Total assets acquired			104,134
Accounts payable			3,057
Other liabilities			1,944
Deferred tax liabilities			4,337
Total liabilities assumed			9,338
Total purchase price			94,796
Less cash acquired			(1,140)
Total purchase price, net of cash acquired	$ 93,656	$ 82,653	$ 93,656