Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Unrecognized Tax Benefits	$ 1.7
Tax positions taken in current year	0.0	$ 0.1	$ 0.0
Excess Tax Benefit from Share-based Compensation	16.9	13.9
Income Tax Refunds	0.1	1.6	0.9
Income Taxes Paid	16.0	3.7	$ 6.8
Deferred Tax Assets, Operating Loss Carryforwards	(137.3)	(134.0)
Valuation Allowance, Amount	$ 56.1	$ 32.3
U.S. Federal tax rate	(35.00%)	(35.00%)	(35.00%)
Continuing operations tax benefit	$ (2.7)	$ (27.2)	$ 41.1
Effective tax rate (%)	(3.00%)	(27.00%)	19.00%
Deferred Tax Liabilities, Undistributed Foreign Earnings	$ 49.3
State and local income taxes	(2.00%)	(2.00%)	2.00%
Effective Income Tax Rate Reconciliation, Other Adjustments	2.00%	0.00%	0.00%
Uncertain tax positions	(4.00%)	1.00%	0.00%
Valuation allowance	31.00%	10.00%	(12.00%)
Income Taxes Receivable	$ 2.0	$ 1.4
Foreign tax rate
Effect of foreign tax rates / foreign exhchange	13.00%	5.00%	(3.00%)
Foreign Currency Gain (Loss)
Effect of foreign tax rates / foreign exhchange	(8.00%)	(6.00%)	(3.00%)