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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Tax year being audited in the income tax examination, in CCYY format.

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Amount of asset related to consideration paid in advance for income and other taxes that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2014
Income Taxes [Line Items]
U.S. federal statutory rate	35.00%
Effective income tax rate	29.40%
Income before income taxes, domestic operations	$ 11.6	$ 11.6
Income before income taxes, foreign operations	19.4	25.4
Liabilities for uncertain income tax positions	40.1us-gaap_UnrecognizedTaxBenefits					37.6us-gaap_UnrecognizedTaxBenefits
Cash paid for income taxes	8.1us-gaap_IncomeTaxesPaidNet
Prepaid tax payments	$ 10.5us-gaap_PrepaidTaxes					$ 5.8us-gaap_PrepaidTaxes
California Franchise Tax Board [Member]
Income Taxes [Line Items]
Income Tax Examination, Year under Examination			2011	2010	2009
Internal Revenue Service (IRS) [Member]
Income Taxes [Line Items]
Income Tax Examination, Year under Examination			2011	2010	2009
Canada Revenue Agency [Member]
Income Taxes [Line Items]
Income Tax Examination, Year under Examination			2011	2010
New York City Department of Finance [Member]
Income Taxes [Line Items]
Income Tax Examination, Year under Examination			2011	2010	2009