Related Party Transactions Related Party Transactions (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Related Party Transactions [Abstract]
number of related party transaction leases terminated		1	1
number of general partnerships	3
Related Party Transaction, Amounts of Transaction				$ 1,857	$ 1,830	$ 1,818