Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 36.9	$ 30.2	$ 117.2	$ 95.4
Gain (Loss) on Sale of Properties, before Applicable Income Taxes	0	0	17.7	0
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Excluding Gain (Loss) on Sale of Properties, before Applicable Income Taxes	36.9	30.2	99.5	95.4
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%	35.00%	35.00%	35.00%
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	12.9	10.6	34.8	33.4
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount	(3.5)	(2.6)	(7.8)	(8.2)
Effective Income Tax Rate Reconciliation, Tax Credit, Amount	0	(0.3)	0	(0.8)
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount	0.9	0.7	2.1	2.1
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	(0.2)	(0.3)	(0.9)	(0.3)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	(2.8)	(2.5)	(6.6)	(7.2)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	0	0	0	(12.8)
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount	(1.9)	(1.0)	(1.9)	(1.0)
Other Tax Expense (Benefit)	0.2	(0.5)	1.1	(1.4)
Current Income Tax Expense (Benefit)	(1.7)	(1.5)	(0.8)	(15.2)
Gain (Loss) on Sale of Properties, Applicable Income Taxes	0	0	6.2	0
Income Tax Expense (Benefit)	$ 8.4	$ 6.6	$ 33.6	$ 11.0
Effective Income Tax Rate Reconciliation, Percent	22.80%	21.90%	28.70%	11.50%