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Income Taxes (Narrative) (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) country | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Other tax expense (benefit) |  |  | $ 3,800 |  |
Number of countries in which entity operates | country |  |  | 18 |  |
Federal tax rate of deferred tax assets and liabilities |  |  | 21.00% |  |
U.S. federal statutory tax rate |  |  | 21.00% | 21.00% | 21.00%
Tax cuts and jobs act, global intangible low-taxed income, reduction of taxable income |  |  | $ 15,000 |  |
Tax cuts and jobs act, global intangible low-taxed income, tax credit, foreign, percent |  |  | 0.50% |  |
Tax cuts and jobs act, global intangible low-taxed income, tax credit, foreign, amount |  |  | $ 700 |  |
Net operating loss carryforwards |  |  | 90,600 |  |
Deferred tax assets, operating loss carryforwards |  |  | 24,600 |  |
Operating loss carryforwards, valuation allowance |  |  | 10,300 |  |
Current year and prior year earnings of Company's foreign operations |  |  | 131,700 |  |
Foreign withholding taxes |  |  | 1,300 |  |
Reduction in provisional transition tax |  |  | 2,000 |  |
Undistributed earnings of foreign subsidiaries |  |  | 132,300 |  |
Interest and penalties related to the unrecognized tax benefits |  |  | 200 | $ 200 | $ 200
Accrued interest and penalties related to unrecognized tax benefits |  |  | 100 | 100 | 400
Deferred state and local income tax expense (benefit) |  | $ 1,800 | 192 | 253 | (338)
Audit settlement tax benefit | $ 1,500 |  | (752) | 2,874 | (1,286)
Income taxes paid, net |  |  | 25,100 | 25,900 | $ 28,100
Tax Attributes With Limited Lives |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Deferred tax assets, net |  |  | $ 9,800 |  |
Brazil |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
U.S. federal statutory tax rate |  |  | 34.00% |  |
China |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
U.S. federal statutory tax rate |  |  | 25.00% |  |
Mexico |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
U.S. federal statutory tax rate |  |  | 30.00% |  |
Valuation allowance expense |  |  | $ 100 |  |
Increase (decrease) in valuation allowance |  |  | $ (300) |  |
Switzerland |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
U.S. federal statutory tax rate |  |  | 7.80% |  |
Germany |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Valuation allowance expense |  |  |  | 700 |
State and Local Jurisdiction |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Net operating loss carryforwards |  |  | $ 8,500 |  |
Operating loss carryforwards, valuation allowance |  |  | 100 |  |
Non-U.S. |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Tax credit carryforward |  |  | 200 |  |
Deferred tax assets, net |  |  | 10,827 | 11,279 |
Non-U.S. | Research Tax Credit Carryforward |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Tax credit carryforward |  |  | 900 |  |
United States |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Deferred tax assets, net |  |  | 18,400 |  |
U.S. |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Deferred tax assets, net |  |  | 18,412 | $ 29,340 |
U.S. | Research Tax Credit Carryforward |  |  |  |  |
Share-based Payment Arrangement [Abstract] |  |  |  |  |
Tax credit carryforward |  |  | $ 9,000 |  |

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