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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax Contingency [Line Items] |  |  |  |
U.S. tax (benefit) on foreign earnings | $ 5,316 | $ 26,013 | $ 0 |
Taxes Payable for the transition tax on foreign unremitted earnings | $ 30,857 |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate | 21.00% |  |  |
Unrecognized Tax Benefits | $ 62,203 | 52,986 | 35,879 | $ 24,361
Unrecognized Tax Benefits, Interest on Income Taxes Expense | 1,862 | 1,469 | 945 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued | 8,100 | 5,639 |  |
Undistributed Earnings of Foreign Subsidiaries | 1,600,000 |  |  |
Income Taxes Paid, Net | 160,143 | 188,601 | $ 226,422 |
International [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Tax Credit Carryforward, Amount | 350,067 |  |  |
Tax Credit Carryforward, Subject to Expiration | 26,210 |  |  |
Tax Credit Carryforward, No Expiration | 323,857 |  |  |
Tax Credit Carryforward, Deferred Tax Asset | 80,768 |  |  |
Other Tax Carryforward, Valuation Allowance | 9,111 |  |  |
Distributed Earnings [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Foreign Earnings Repatriated | 349,000 | 761,000 |  |
Undistributed Earnings [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Foreign Earnings Repatriated | 2,400,000 |  |  |
Tax expense related to federal GILTI tax [Member] |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
U.S. tax (benefit) on foreign earnings | $ 233 | $ 31,042 |  |

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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(15)(b)(1)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(1)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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