Exit Activities (Summary of Closure Reserves for Stores, Administrative Office and Distribution Facilities and Reserves for Employee Separation Costs) (Details) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011
Store Closure Liabilities [Member]
Balance at December 31, 2010:	$ 13,971
Additions and accretion	355
Payments	(2,084)
Revisions to estimates	3
Balance at June 30, 2011:	12,245
Administrative Office and Distribution Facilities Closure Liabilities [Member]
Balance at December 31, 2010:	5,608
Additions and accretion	171
Payments	(1,345)
Revisions to estimates	192
Balance at June 30, 2011:	4,626
Employee Separation Liabilities [Member]
Balance at December 31, 2010:	1,156
Additions and accretion	0
Payments	(912)
Revisions to estimates	(244)
Balance at June 30, 2011:	$ 0