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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Operating Loss Carryforwards [Line Items] |  |  |
Federal income tax at statutory rate (as a percent) | 21.00% | 35.00% | 35.00%
Income tax expense, Tax Reform Act mandatory repatriation of undistributed foreign subdidiary earnings and profits |  | $ 54,000,000 |
Tax cuts and jobs act of 2017 measurement period adjustment to transition tax obligation | $ 3,200,000 |  |
Tax cuts and jobs act of 2017 total transition tax obligation | 57,200,000 |  |
Tax cuts and jobs act 2017, change in tax rate, tax benefit | $ 11,700,000 |  |
Effective income tax rate reconciliation tax cuts and jobs act of 2017 percent | 0.00% |  |
Tax cuts and jobs act of 2017 related to GILTI provisional income tax expense | $ 0 |  |
Tax cuts and jobs act of 2017 base erosion and anti abuse tax income tax expense | 400,000 |  |
Tax cuts and jobs act of 2017 change in net operating losses and valuation allowance | 30,400,000 |  |
Change in valuation allowance, deferred tax asset | 1,300,000 |  |
Tax cuts and jobs act, deferred tax assets | 1,700,000 |  |
Tax cuts and jobs act, unremitted earnings of non-United States subsidiaries | 322,000,000 |  |
Tax cuts and jobs act, additional unremitted earnings of non-United States subsidiaries | 357,000,000 |  |
Tax cuts and jobs act, deferred tax liability |  | 0 |
Change to gross unrecognized tax expense (benefits) including interest and penalties | (7,600,000) | (1,700,000) | $ 4,900,000
Uncertain tax liabilities interest and penalties | (1,000,000) | 300,000 | 2,800,000
Uncertain tax liabilities interest and penalties accrued | 6,700,000 | 7,700,000 |
Unrecognized tax benefits that would impact effective tax rate | 7,200,000 | $ 13,100,000 | $ 14,600,000
Unrecognized tax benefits possibly reduced from audit resolutions during the next 12 months | 8,400,000 |  |
Domestic Tax Authority |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | 67,400,000 |  |
Net operating loss carryforwards with expiration period | $ 45,200,000 |  |
Operating loss carryforwards expiration period | 2036 |  |
Net operating loss carryforwards not subject to any time restrictions for future use | $ 22,200,000 |  |
Maximum annual utilization percentage of indefinite lived loss carryforwards | 80.00% |  |
Interest expense carryforwards | $ 35,800,000 |  |
Maximum annual utilization percentage of interst expense carryforwards | 30.00% |  |
State and Local Jurisdiction |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | $ 692,300,000 |  |
Operating loss carryforwards expiration period | 2038 |  |
Non-U.S. Tax Authority |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Net operating loss carryforwards | $ 329,200,000 |  |
Net operating loss carryforwards, valuation allowance | 146,800,000 |  |
U.K |  |  |
Operating Loss Carryforwards [Line Items] |  |  |
Deferred tax assets, valuation allowance | $ 12,300,000 |  |

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