Summary of Estimated Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 28, 2013	Jan. 15, 2013	Dec. 31, 2012
Schedule of Business Acquisitions, Purchase Price Allocation [Line Items]
Accounts receivable		$ 10,327
Inventory		14,214
Property and equipment		2,812
Intangible assets		37,003
Other assets		1,782
Goodwill	73,514	28,936	44,578
Total assets acquired		95,074
Accounts payable		4,768
Accrued expenses		6,425
Deferred tax liabilities		315
Other liabilities assumed		913
Total liabilities assumed		12,421
Total net assets acquired		$ 82,653