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Income Taxes - Additional Information (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Operating Loss Carryforwards [Line Items] |  |  |  |
U.S. federal statutory income tax rate (as a percent) | 21.00% | 35.00% | 35.00% |
Remeasurement of deferred taxes | $ 9,000,000 | $ 67,800,000 |  |
Transition tax on undistributed foreign earnings | 1,600,000 | 45,700,000 |  |
Provisional tax benefit | 62,500,000 | 42,500,000 | $ 90,300,000 |
Income tax provision for undistributed foreign earnings | 0 | 0 |  |
Unremitted foreign earnings | 947,000,000 |  |  |
Net change in the total valuation allowance | 6,100,000 | 4,000,000 |  |
Tax credit carryforwards | 8,100,000 | 10,800,000 |  |
Unrecognized tax benefits | 7,500,000 | 12,300,000 | 16,700,000 | $ 25,300,000
Unrecognized tax benefits that impact on effective tax rate | 6,100,000 |  |  |
Interest expense (income) related to unrecognized tax benefit | 0 | 300,000 | $ 1,100,000 |
Interest accrued on unrecognized tax benefits | 200,000 | $ 800,000 |  |
Interest related to the unrecognized tax benefit reversed | 600,000 |  |  |
Minimum |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Decrease in reasonably possible unrecognized tax benefits within next twelve months | 400,000 |  |  |
Maximum |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Decrease in reasonably possible unrecognized tax benefits within next twelve months | 1,300,000 |  |  |
U.S. |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards | $ 11,500,000 |  |  |
U.S. | Minimum |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Statute of limitations on years that can be open for examination | 3 years |  |  |
U.S. | Maximum |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Statute of limitations on years that can be open for examination | 5 years |  |  |
Foreign country |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carryforwards | $ 249,200,000 |  |  |
Valuation allowance on net operating losses | $ 178,000,000 |  |  |
Foreign country | Minimum |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Statute of limitations on years that can be open for examination | 3 years |  |  |
Foreign country | Maximum |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Statute of limitations on years that can be open for examination | 5 years |  |  |
China |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Carryforward period | 5 years |  |  |
ACT |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
U.S. federal statutory income tax rate (as a percent) | 21.00% | 35.00% |  |
Remeasurement of deferred taxes | $ 7,800,000 | $ 67,800,000 |  |
Unremitted earnings taxation period |  | 8 years |  |
Transition tax on undistributed foreign earnings |  | $ 45,700,000 |  |
Provisional tax benefit |  | $ (22,100,000) |  |
Reduction in effective tax rate (as a percent) | 2.30% | 6.80% |  |

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