Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 25, 2012	Mar. 27, 2011
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization expense	$ 7,879	$ 8,289
Customer Relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, minimum useful life (in years)	3
Intangible assets, maximum useful life (in years)	25
Other Intangible Assets
Goodwill and Intangible Assets Disclosure [Line Items]
Intangible assets, minimum useful life (in years)	4
Intangible assets, maximum useful life (in years)	21