Inventories (Merchandise Inventories) (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 29, 2012
LIFO Inventory Amount	$ 173,879,000	$ 187,847,000
Weighted Average Cost Inventory Amount	52,312,000	57,396,000
Inventories	226,191,000	245,243,000
Inventory, LIFO Reserve, Period Charge	5,600,000
Increase in Inventory had Average Cost Been Used [Member]
Inventories	$ 77,129,000	$ 78,330,000