Goodwill and Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
Goodwill and Intangible Assets Disclosure [Line Items]
Amortization expenses for intangible assets	$ 18.2	$ 19.7	$ 22.4
Minimum
Goodwill and Intangible Assets Disclosure [Line Items]
Discount rates utilized in discounted cash flows	12.00%
Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Discount rates utilized in discounted cash flows	16.50%