Exit Activities (Summary of Closure Reserves for Stores, Administrative Office and Distribution Facilities and Reserves for Employee Separation Costs) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Store Closure Liabilities [Member]
Beginning balance	$ 11,312	$ 13,971
Additions and accretion	584	695
Payments	(2,998)	(3,634)
Revisions to estimates	(561)	280
Ending balance	8,337	11,312
Administrative Office and Distribution Facilities Closure Liabilities [Member]
Beginning balance	3,544	5,608
Additions and accretion	170	314
Payments	(2,038)	(2,593)
Revisions to estimates	0	215
Ending balance	1,676	3,544
Employee Separation Liabilities [Member]
Beginning balance	0	1,156
Additions and accretion	0
Payments	0	(912)
Revisions to estimates	0	(244)
Ending balance	$ 0	$ 0