Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Excess Tax Benefit from Share-based Compensation, Financing Activities									$ 3.7	$ 0.6	$ 0.4
Proceeds from Income Tax Refunds									1.9	25.8	51.4
Income Taxes Paid									1.6	0.8	5.7
Income Taxes Receivable, Current	1.8				3.5				1.8	3.5
Deferred Tax Assets, Operating Loss Carryforwards	(187.0)				(171.7)				(187.0)	(171.7)
Valuation Allowance, Amount	50.7				49.1				50.7	49.1
U.S. Federal tax rate									35.00%	(35.00%)	(35.00%)
Continuing operations tax benefit	12.0	7.9	(11.1)	(1.2)	(3.0)	(20.9)	(8.4)	(6.8)	7.6	(39.1)	(22.1)
Effective tax rate (%)									19.00%	(19.00%)	(40.00%)
Deferred Tax Liabilities, Undistributed Foreign Earnings	45.6								45.6
state and local income taxes									2.00%	(3.00%)	(6.00%)
Effective Income Tax Rate Reconciliation, Other Adjustments									(3.00%)	1.00%	4.00%
Adjustment to previously recorded deferred tax liabilities									(12.00%)	0.00%	0.00%
Uncertain tax positions									(1.00%)	5.00%	0.00%
Valuation allowance									1.00%	13.00%	(1.00%)
Year 2029 [Member]
Deferred Tax Assets, Operating Loss Carryforwards	(77.4)								(77.4)
State and Local Jurisdiction [Member] | indefinate [Member]
Deferred Tax Assets, Operating Loss Carryforwards	(32.8)								(32.8)
State and Local Jurisdiction [Member] | years through 2026 [Member]
Deferred Tax Assets, Capital Loss Carryforwards	0.7								0.7
Impairment of Goodwill [Member]
Effective Income Tax Rate Reconciliation, Other Adjustments									0.00%	0.00%	9.00%
Foreign Currency Gain (Loss) [Member]
Effect of foreign tax rates / foreign exhchange									(3.00%)	0.00%	(11.00%)
Foreign Country [Member] | years through 2026 [Member]
Deferred Tax Assets, Operating Loss Carryforwards	(63.6)								(63.6)
Foreign Country [Member] | Carried Forward Indefinetly [Member]
Deferred Tax Assets, Operating Loss Carryforwards	(12.5)								(12.5)
State NOL [Member]
Valuation Allowance, Amount	15.4								15.4
State Capital Losses [Member]
Valuation Allowance, Amount	0.7								0.7
Canadian NOL [Member]
Valuation Allowance, Amount	20.7								20.7
Canadian Capital Losses [Member]
Valuation Allowance, Amount	11.3								11.3
State Tax Credit [Member]
Valuation Allowance, Amount	1.0								1.0
Other Items [Member]
Valuation Allowance, Amount	$ 1.6								$ 1.6