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Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2014	Sep. 30, 2015
Income taxes
Foreign tax credit carryforwards	$ 136.9
Foreign tax credit carryforward period		10 years
Foreign tax credit carryforward deferred tax assets
Income taxes
Additional valuation allowance	$ 7.2
Foreign tax credit carryforward deferred tax assets | Spin-off | Pro Forma | Minimum
Income taxes
Additional valuation allowance		$ 45.0
Foreign tax credit carryforward deferred tax assets | Spin-off | Pro Forma | Maximum
Income taxes
Additional valuation allowance		$ 65.0

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- Definition

Period in which foreign tax credit carryforwards may be realized, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 740



-SubTopic 10



-Section 50



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