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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Income Tax Provision |  |  |  |  |  |
Income tax benefit of indefinite reinvestment of earnings of foreign subsidiaries |  | $ 6.3 | $ 6.3 | $ 12.5 | $ 12.5 |
Liability for uncertain tax positions including interest and related charges |  | 26.6 |  | 26.6 |  | $ 26.9
Accrued income tax interest and related charges |  | 1.6 |  | 1.6 |  | 1.8
Unrecognized tax benefits that would impact effective tax rate |  | $ 25.4 |  | $ 25.4 |  | $ 25.3
Controlling Interest |  |  |  |  |  |
Income Tax Provision |  |  |  |  |  |
Effective tax rate attributable to controlling interests | [1] | 32.30% | 35.00% | 33.30% | 34.50% |
[1] | Taxes attributable to the controlling interest divided by Income before income taxes (controlling interest).

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- Definition A ratio calculated by dividing the amount of income tax expense attributable to the controlling interest by pretax income from continuing operations attributable to the controlling interest. + References No definition available. + Details
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- Definition The gross amount of unrecognized tax benefits, including interest and related charges, pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. + References No definition available. + Details
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- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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