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Income Taxes - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Operating Loss Carryforwards [Line Items] |  |  |  |
Federal income tax at statutory rate (as a percent) | 35.00% | 35.00% | 35.00% |
Change in valuation allowance, deferred tax asset | $ 187.0 |  |  |
Undistributed earnings of consolidated non-U.S. subsidiaries | 474.2 |  |  |
Cash and cash equivalents held by foreign subsidiaries | 13.6 |  |  |
Change to gross unrecognized tax benefits including interest and penalties | (0.8) | $ (1.9) | $ (12.1) |
Uncertain tax liabilities interest and penalties | 2.8 | (0.5) |  | $ (2.4)
Uncertain tax liabilities interest and penalties accrued | 7.4 | $ 4.6 |  |
Unrecognized tax benefits and income tax expense possibly reduced from audit resolutions | 11.2 |  |  |
Domestic Tax Authority |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards | 101.5 |  |  |
State and Local Jurisdiction |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards | 667.8 |  |  |
Foreign Tax Authority |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards | 341.9 |  |  |
Net operating loss carryforwards, valuation allowance | $ 332.4 |  |  |

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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 + Details
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