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Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income (loss) from continuing operations before taxes and noncontrolling interests [Abstract] |  |  |
Domestic | $ (25,884) | $ (10,992) | $ (39,861)
Foreign | 184,212 | 237,290 | 456,637
Income before taxes | 158,328 | 226,298 | 416,776
Current: |  |  |
Federal | 7,327 | 9,137 | 18,756
State and local | 218 | 415 | 209
Foreign | 55,399 | 113,779 | 263,247
Total current income tax expense | 62,944 | 123,331 | 282,212
Deferred: |  |  |
Federal | (6,068) | (13,731) | (58,386)
State and local | (538) | (802) | (3,117)
Foreign | (21,793) | (47,290) | (150,470)
Total deferred income tax expense | (28,399) | (61,823) | (211,973)
Total income tax expense | 34,545 | 61,508 | 70,239
Deferred tax assets: |  |  |
Pension and other retiree obligations | 53,585 | 48,434 |
Inventories | 19,539 | 19,318 |
Net operating loss carryforwards | 124,251 | 119,420 |
Tax credit carryforwards | 85,651 | 76,140 |
Other accruals and reserves | 31,347 | 29,273 |
Total gross deferred tax assets | 314,373 | 292,585 |
Less valuation allowance | (206,950) | (194,797) |
Deferred tax assets, net | 107,423 | 97,788 |
Deferred tax liabilities: |  |  |
Property and equipment | (1,604) | (2,391) |
Earnings not permanently reinvested | 0 | (16,448) |
Convertible debentures | (12,777) | (25,219) |
Other - net | (6,364) | (6,499) |
Total gross deferred tax liabilities | (20,745) | (50,557) |
Net deferred tax assets (liabilities) | 86,678 | 47,231 |
Discrete Tax Items Repatriation | 190 | 9,583 | 10,047
Total tax expense enactment of TCJA |  |  | 25,496
Discrete tax items debt extinguishment | 1,563 | 1,601 | 54,877
Discrete tax item related to tax-basis foreign exchange gain on settlement of intercompany loan |  | 7,554 |
Tax effects of changes in uncertain tax positions | 3,751 | 2,831 |
Tax Cuts and Jobs Act of 2017 BEAT Tax | 750 | 2,900 | 0
Reconciliation of income tax expense at federal statutory rate to actual income tax provision [Abstract] |  |  |
Tax at statutory rate | 33,249 | 47,523 | 87,523
State income taxes, net of U.S. federal tax benefit | (252) | (301) | (2,298)
Effect of foreign operations | (9,896) | 9,242 | 5,736
Tax on earnings not permanently reinvested | 4,227 | 6,256 | 9,304
Unrecognized tax benefits | 4,351 | 5,584 | 2,669
Senior convertible debenture repurchase | (1,358) | (1,461) | (52,312)
TCJA remeasurement of deferred tax liabilities | 0 | 0 | (1,211)
TCJA - transition tax on unremitted foreign earnings | 0 | 0 | 7,425
Foreign income taxable in the U.S. | 4,155 | 6,090 | 15,055
Deferred tax rate impact of corporate reorganization | 0 | (12,121) | 0
Other | 69 | 696 | (1,652)
Total income tax expense | 34,545 | 61,508 | 70,239
Net operating loss carryforwards [Abstract] |  |  |
Discrete tax items included income tax expense | 1,998 | (799) | $ (39,428)
Corporate tax rate |  |  | 21.00%
Percentage of dividends received deduction allowed on qualifying dividends paid by foreign subsidiaries |  |  | 100.00%
TCJA one-time transition tax percentage on deferred foreign earnings for liquid assets |  |  | 15.50%
TCJA one-time transition tax percentage on deferred foreign earnings for illiquid assets |  |  | 8.00%
Available tax credit carryforwards [Abstract] |  |  |
Discrete Tax Items Repatriation | (190) | (9,583) | $ (10,047)
U.S. foreign tax credit carryforward (gross) | 68,874 |  |
Income tax uncertainties [Abstract] |  |  |
Cash repatriated during the current period | 104,091 | 188,742 | 724,000
Repatriation taxes paid | 16,258 | 38,814 | 156,767
Expected TCJA tax payment, net | 184,467 | 184,467 | 184,467
Amount of TCJA tax first installment | 14,757 | 14,757 | 14,757
Net income taxes paid (refunded) | 69,706 | 185,654 | 248,958
Company accrued interest and penalties related to the unrecognized tax benefits | 3,239 | 3,561 |
Company recognized interest and penalties. | 128 | 1,201 | 1,470
Unrecognized tax benefits [Roll Forward] |  |  |
Balance at beginning of year | 36,868 | 21,241 | 17,056
Addition based on tax positions related to the current year | 663 | 2,383 | 4,332
Addition based on tax positions related to prior years | 8,358 | 16,190 | 2,066
Currency translation adjustments |  |  | (984)
Currency translation adjustments | 1,361 | 1,211 |
Reduction based on tax positions related to prior years | (3,152) | 0 | 0
Reduction for settlements | (3,446) | (3,121) | (1,229)
Reduction for lapses of statute of limitation | 0 | (1,036) | 0
Balance at end of year | 40,652 | $ 36,868 | $ 21,241
Minimum [Member] |  |  |
Available tax credit carryforwards [Abstract] |  |  |
Decrease in Unrecognized Tax Benefits is Reasonably Possible | 4,506 |  |
Maximum [Member] |  |  |
Available tax credit carryforwards [Abstract] |  |  |
Decrease in Unrecognized Tax Benefits is Reasonably Possible | 9,249 |  |
Austria [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | 19,490 |  |
Belgium [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | 172,952 |  |
Israel [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | 10,706 |  |
Italy [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | 16,779 |  |
Japan [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | $ 8,490 |  |
Japan [Member] | Minimum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2023 |  |
Japan [Member] | Maximum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2030 |  |
Netherlands [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | $ 13,216 |  |
Netherlands [Member] | Minimum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2021 |  |
Netherlands [Member] | Maximum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2026 |  |
The Republic of China (Taiwan) [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | $ 18,184 |  |
The Republic of China (Taiwan) [Member] | Minimum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2026 |  |
The Republic of China (Taiwan) [Member] | Maximum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2028 |  |
California [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | $ 27,893 |  |
California [Member] | Minimum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2021 |  |
California [Member] | Maximum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2040 |  |
Pennsylvania [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Net operating loss carryforward | $ 614,410 |  |
Pennsylvania [Member] | Minimum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2021 |  |
Pennsylvania [Member] | Maximum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date NOL carryforward | Dec. 31, 2040 |  |
Research Tax Credit [Member] | California [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Tax credit carryforward, amount | $ 16,478 |  |
Available tax credit carryforwards [Abstract] |  |  |
Tax Credit Carryforward | 16,478 |  |
U.S. Foreign Tax Credit [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Tax credit carryforward, amount | 68,874 |  |
Available tax credit carryforwards [Abstract] |  |  |
Tax Credit Carryforward | $ 68,874 |  |
U.S. Foreign Tax Credit [Member] | Minimum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date tax credit carryforward | Dec. 31, 2028 |  |
U.S. Foreign Tax Credit [Member] | Maximum [Member] |  |  |
Net operating loss carryforwards [Abstract] |  |  |
Expiration date tax credit carryforward | Dec. 31, 2030 |  |

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