Income Taxes - Schedule of Deferred Income Taxes (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets
Net operating loss carryforwards	$ 60.5	$ 63.6
Unfunded pension liability and other postretirement obligations	6.7	16.0
Advanced payments from foreign affiliates	61.5	28.9
Tax credit carryforwards	3.5	11.2
Stock based compensation	16.0	14.4
Other comprehensive income	9.1	6.0
Reserves and other	24.6	18.9
Subtotal	181.9us-gaap_DeferredTaxAssetsGross	159.0us-gaap_DeferredTaxAssetsGross
Valuation allowance	(60.5)	(62.3)
Total assets	121.4us-gaap_DeferredTaxAssetsNet	96.7us-gaap_DeferredTaxAssetsNet
Liabilities
Accelerated depreciation	(108.6)	(63.4)
Accelerated amortization	(10.6)	(9.2)
Other	(0.6)us-gaap_DeferredTaxLiabilitiesOther	(0.8)us-gaap_DeferredTaxLiabilitiesOther
Total liabilities	(119.8)us-gaap_DeferredTaxLiabilities	(73.4)us-gaap_DeferredTaxLiabilities
Net deferred tax assets	$ 1.6us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 23.3us-gaap_DeferredTaxAssetsLiabilitiesNet

The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from unrealized gains on items in other comprehensive income which can only be deducted for tax purposes when the gains are realized and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken.

No definition available.