Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Jan. 02, 2012	Dec. 27, 2010
Minimum annual rentals
2013	$ 12,600,000
2014	10,691,000
2015	8,990,000
2016	6,093,000
2017	2,722,000
Thereafter	5,975,000
Total	47,071,000
Sublease rental income	700,000
Rental expense	13,100,000	13,100,000	14,200,000
Amounts incurred under additional rent provisions and agreements	$ 200,000	$ 200,000	$ 200,000