Accrued Expenses (Details) (USD $)	Jun. 29, 2013	Dec. 29, 2012
Accrued Expenses
Compensation and related expenses	$ 25,659,000	$ 40,329,000
Income taxes payable	853,000	626,000
Other	5,824,000	4,350,000
Total	32,336,000	45,305,000
Accrued bonuses	$ 13,900,000	$ 28,000,000