Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 27, 2013	Jan. 15, 2013	Dec. 31, 2012
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Accounts receivable		$ 10,327
Inventory		14,144
Property and equipment		2,426
Intangible assets		37,817
Other assets		1,782
Goodwill	71,087	26,509	44,578
Total assets acquired		93,005
Accounts payable		4,768
Accrued expenses		6,217
Deferred tax liabilities		315
Other liabilities assumed		932
Total liabilities assumed		12,232
Total net assets acquired		$ 80,773