Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 26, 2012	Dec. 28, 2011	Dec. 29, 2010
Related Party Transactions [Abstract]
Cash proceeds from related party sales	$ 0.5	$ 0.3	$ 1.5
(Loss) gains recognized from related party sales	$ (0.2)	$ 0.2	$ 1.3