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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Dec. 22, 2017 | Sep. 30, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Income Tax Contingency [Line Items] |  |  |  |  |  |
U.S. federal income tax rate |  | 21.00% |  | 35.00% | 21.00% |
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) |  |  | $ 19,800 |  |  |
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense (Benefit) |  |  | 18,000 |  |  |
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Provisional Income Tax Expense (Benefit) |  |  | 1,800 |  |  |
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Differences of Non-U.S. Subsidiaries Offset By Foreign Tax Credits | $ 7,800 |  |  |  |  |
Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) Adjustment During the Period |  |  |  |  | $ 2,000 |
Business Exit Costs |  | $ 5,100 |  |  |  |
Effective income tax rate |  | (11.00%) |  | 14.40% | (19.10%) | 9.60%
Significant tax benefit related to certain share-based payments |  |  |  | 6.60% |  | 10.50%
EffectiveTaxRateReconciliationTaxBenefitAssociatedWiththeReductionofExitTaxes |  |  |  |  |  | 3.80%
Insurance receivable (Note 19) and other noncurrent assets |  | $ 56,681 | $ 131,790 |  | $ 56,681 |
Accrued interest and penalties related to uncertain tax positions |  | 3,000 |  |  | 3,000 |
Other Noncurrent Liabilities |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Unrecognized tax benefits |  | 14,500 |  |  | 14,500 |
Deferred Tax Asset |  |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |  |
Insurance receivable (Note 19) and other noncurrent assets |  | $ 5,200 |  |  | $ 5,200 |

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 + Details
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