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Income Taxes, Deferred Tax Assets and Liabilities, Operating Loss Carryovers (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Deferred tax assets [Abstract] |  |
Benefit plans | $ 10,360 | $ 7,665
Liabilities and reserves | 16,978 | 19,291
Operating loss and credit carryovers | 68,646 | 77,756
Other | 10,031 | 13,228
Gross deferred tax assets | 106,015 | 117,940
Valuation allowance | (36,859) | (47,813)
Deferred tax assets | 69,156 | 70,127
Deferred tax liabilities [Abstract] |  |
Property, plant, and equipment | (32,560) | (31,709)
Goodwill | (21,044) | (22,012)
Deferred tax liabilities | (53,604) | (53,721)
Net deferred tax assets | 15,552 | $ 16,406
Operating Loss Carryforwards [Abstract] |  |
Operating loss carryovers, tax credit | 36,800 |
Undistributed earnings | 625,900 |
Withholding of tax liability | 32,900 |
Foreign [Member] |  |
Operating Loss Carryforwards [Abstract] |  |
Operating loss carryovers | 87,200 |
Operating loss carryovers, subject to expiration | 10,100 |
Operating loss carryovers, not subject to expiration | 77,100 |
State [Member] |  |
Operating Loss Carryforwards [Abstract] |  |
Operating loss carryovers | 126,400 |
Operating loss carryovers, subject to expiration | $ 126,400 |

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