Liquidity (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Line of Credit Facility [Line Items]
Operating Leases, Future Minimum Payments Due	$ 194.5
Net Cash Provided by (Used in) Operating Activities	28.5	12.1	(25.9)
Credit Agreement Amendment, September 2014 [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.25%
Debt Instrument, Covenants [Abstract]
Line of Credit Facility, Commitment Fee Amount	$ 1.7
Debt Instrument, Total Leverage Ratio	4.57
ABL Facility Credit Agreement [Member]
Debt Instrument, Covenants [Abstract]
Maximum Total Leverage Ratio, December 31, 2014	5.25
Maximum Total Leverage Ratio, March 31, 2015	5.00
Debt Instrument, Covenant, Maximum Total Leverage Ratio, Quarter Three	4.75
Maximum Total Leverage Ratio, September 30, 2015	4.50
Maximum Total Leverage Ratio, December 31, 2015	4.25
Maximum Total Leverage Ratio, March 31, 2016	4.00
Maximum Total Leverage Ratio, June 30, 2016	3.75
Maximum Total Leverage Ratio, September 30, 2016	3.75
Maximum Total Leverage Ratio, December 31, 2016	3.50
Maximum Total Leverage Ratio, March 31, 2017	3.25
Maximum Total Leverage Ratio, June 30, 2017	3.25
Maximum Total Leverage Ratio, September 30, 2017	3.25
Maximum Total Leverage Ratio, December 31, 2017 and Thereafter	3.00
Line of Credit [Member] | 2014 ABL Facility Credit Agreement [Member]
Debt Instrument, Covenants [Abstract]
Debt Instrument, Minimum Availability as Percent of Lesser of Aggregate Amount of Commitments or Borrowing Base	10.00%