Exit Activities (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Store Closure Liabilities [Member]
Restructuring and related activities, completion date	Apr. 23, 2023
Cumulative amount incurred for exit activities	$ 24.4
Administrative Office and Distribution Facilities Closure Liabilities [Member]
Cumulative amount incurred for exit activities	10.0
Employee Separation Liabilities [Member]
Cumulative amount incurred for exit activities	$ 29.4