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Summary of Significant Accounting Policies (Schedule of Accumulated Other Comprehensive Income (loss)) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax | $ (6,981) | $ 20,035 | $ (24,263) |
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax | (8,890) | (8,865) | (43,510) |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | (287) | (1,643) | 16,514 |
Other comprehensive income (loss) | 1,909 | 28,900 | 19,247 |
Equity | 201,762 | 184,722 | 109,055 | $ 376,749
Other Comprehensive Income (Loss), before Reclassifications, before Tax | 3 | (2,008) | (9,678) |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Before reclassification, beforeTax | (1,256) | 3,800 | (4,362) |
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax | (6,464) | 23,932 | (16,425) |
Other Comprehensive Income (Loss), before Reclassifications, before Tax | (7,717) | 25,724 | (30,465) |
Foreign currency translation adjustment, tax (benefit) | (290) | 365 | 897 |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Before reclassification, Tax | (374) | (842) | 1,077 |
Net gains or losses and prior service costs, tax (benefit) | 1,400 | (5,212) | 4,228 |
Other Comprehensive Income (Loss) before Reclassifications, Tax | 736 | (5,689) | 6,202 |
Unrealized foreign currency translation adjustment (net of tax expense of $290 in 2022, net of tax benefit of $365 in 2021 and net of tax benefit of $897 in 2020) | (287) | (1,643) | (8,781) |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Before reclassification, afterTax | (1,630) | 2,958 | (3,285) |
Net gains (losses) and prior service costs (net of tax benefit of $1,400 in 2022, net of tax expense of $5,212 in 2021 and net of tax benefit of $4,228 in 2020) | (5,064) | 18,720 | (12,197) |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax | 0 | 0 | 25,295 |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax | (2,461) | (5,513) | 8,724 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax | 13,606 | 16,862 | 15,296 |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax | 11,145 | 11,349 | 49,315 |
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Income Tax (Expense) Benefit, Tax | 710 |  |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Tax | 0 | 0 | 0 |
Reclassification from AOCI, Current Period, Tax |  | 1,192 | (1,868) |
Amortization of prior service costs and net gains or losses, tax | (2,965) | (3,676) | (3,937) |
Other Comprehensive Income (Loss) Reclassifications, Tax | (2,255) | (2,484) | (5,805) |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Net of Tax | 0 | 0 | 25,295 |
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax | (1,751) | (4,321) | 6,856 |
Amortization of prior service costs and net gains or losses (net of tax expense of $2,965 in 2022, net of tax expense of $3,676 in 2021 and net of tax expense of $3,937 in 2020) | 10,641 | 13,186 | 11,359 |
Other Comprehensive Income (Loss), Derivatives, Net of Tax | (3,381) |  |  |
Derivative financial instruments adjustment (net of tax benefit of $336 in 2022, net of tax benefit of $351 in 2021 and net of tax expense of $790 in 2020) |  | (1,363) | 3,571 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 5,577 | 31,906 | (838) |
Accumulated Foreign Currency Adjustment Attributable to Parent [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |
Equity | (86,079) | (85,792) | (84,149) | (100,663)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |
Equity | (2,480) | 901 | 2,264 | (1,307)
Pension And Other Postretirement Benefit Adjust |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |
Equity | (59,036) | (64,613) | (96,519) | (95,681)
Accumulated Other Comprehensive Income (Loss) |  |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |  |  |
Beginning balance | (149,504) | (178,404) | (197,651) |
Equity | (147,595) | (149,504) | (178,404) | $ (197,651)
Net gains (losses) and prior service costs (net of tax benefit of $1,400 in 2022, net of tax expense of $5,212 in 2021 and net of tax benefit of $4,228 in 2020) | (5,064) | 18,720 | (12,197) |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax |  |  | 25,295 |
Amortization of prior service costs and net gains or losses (net of tax expense of $2,965 in 2022, net of tax expense of $3,676 in 2021 and net of tax expense of $3,937 in 2020) | 10,641 | 13,186 | 11,359 |
Ending balance | $ (147,595) | $ (149,504) | $ (178,404) |

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