Commitments and Contingent Liabilities - Operating Leases (Details) (USD $)	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 25, 2011
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 16,000,000	$ 18,000,000	$ 17,000,000
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2014	12,472,000
2015	10,503,000
2016	7,419,000
2017	6,976,000
2018	4,022,000
Later years	10,883,000
Total minimum lease payments	52,275,000
Less: noncancelable subleases	(8,680,000)
Total minimum lease payments, net of noncancelable subleases	$ 43,595,000