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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax Disclosure [Line Items] |  |  |
Provisional tax expense |  | $ 274,000 |
2017 Tax Act measurement adjustment | $ 135,700 |  |
Income tax expense (benefit), after foreign tax aredits | 26,000 |  |
Transition tax on deemed repatriation | 10,100 |  |
Alternative minimum tax | 9,765 | 29,710 |
Alternative minimum tax expected to be refunded next fiscal year | 19,600 |  |
Operating loss carryforwards | 2,360,000 |  |
Deferred tax asset. operating loss carryforward | 496,629 | 272,930 |
Decrease in income tax expense, foreign tax credits | 16,000 |  |
Increase (decrease) in deferred tax asset valuation allowance | $ 262,000 |  |
Withholding tax on amounts repatriated | 5.00% |  |
Deferred tax expense, undistributed foreign earnings | $ 60,000 |  |
Earnings repatriated | 1,200,000 |  |
Earnings expected to be repatriated in next fiscal year | 100,000 | 1,300,000 |
Deferred tax liability, undistributed foreign earnings | 5,000 | 65,000 |
Undistributed foreign earnings | 1,200,000 |  |
Other recorded liabilities for interest and penalties | 200 | 100 | $ 300
Income tax expense (benefit) related to interest and penalties | $ (100) | $ (200) | $ (100)
United States [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions | 2015 |  |
Canada [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions | 2013 |  |
Malaysia [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions | 2012 |  |
United Kingdom [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Earliest year remaining open for audit and/or settlement in major taxing jurisdictions | 2017 |  |
Minimum [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Expected liability to be added for uncertain taxes during next twelve months | $ 200 |  |
Minimum [Member] | United States [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Operating loss carryforward, expiration date | Dec. 31, 2036 |  |
Maximum [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Expected liability to be added for uncertain taxes during next twelve months | $ 1,000 |  |
Maximum [Member] | United States [Member] |  |  |
Income Tax Disclosure [Line Items] |  |  |
Operating loss carryforward, expiration date | Dec. 31, 2037 |  |

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