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Pensions and Other Postretirement Benefits (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2023 USD ($) Plan | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract] |  |  |  |
Included in other assets |  | $ 3,929 | $ 4,715 |
Included in Payroll and related expenses |  | (9,523) | (14,368) |
Accrued pension and other postretirement costs |  | (195,503) | (187,092) |
Total actuarial items | [1] | 24,330 | 15,173 |
Components of actuarial items [Abstract] |  |  |  |
Total actuarial items | [1] | $ 24,330 | 15,173 |
Other postretirement benefits [Abstract] |  |  |  |
Number of unfunded non-pension postretirement plans | Plan |  | 2 |  |
Number of European subsidiaries with unfunded non-pension postretirement plans | Plan |  | 2 |  |
Other retirement obligations [Abstract] |  |  |  |
Company's matching expense for 401(k) savings plans |  | $ 7,641 | 7,083 | $ 6,557
Deferred Compensation [Member] |  |  |  |
Defined benefit pension plans [Abstract] |  |  |  |
Assets held in trust |  | 28,838 | 28,535 |
Non-qualified Pension Plans [Member] |  |  |  |
Defined benefit pension plans [Abstract] |  |  |  |
Assets held in trust |  | 21,095 | 20,615 |
Defined Benefit Pension [Member] | U.S. Plans [Member] |  |  |  |
Change in benefit obligation [Roll forward] |  |  |  |
Benefit obligation at beginning of year |  | 37,221 | 45,613 |
Service cost |  | 0 | 0 | 0
Interest cost |  | 1,997 | 1,122 | 1,016
Plan amendments |  | 0 | 0 |
Actuarial (gains) losses |  | (272) | (7,668) |
Benefits paid |  | (8,255) | (1,846) |
Curtailments and settlements |  | 0 | 0 |
Currency translation |  | 0 | 0 |
Benefit obligation at end of year |  | 30,691 | 37,221 | 45,613
Change in plan assets [Roll forward] |  |  |  |
Fair value of plan assets at beginning of year |  | 0 | 0 |
Actual return on plan assets |  | 0 | 0 |
Company contributions |  | 8,255 | 1,846 |
Benefits paid |  | (8,255) | (1,846) |
Currency translation |  | 0 | 0 |
Fair value of plan assets at end of year |  | 0 | 0 | 0
Funded status at end of year |  | (30,691) | (37,221) |
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract] |  |  |  |
Included in other assets |  | 0 | 0 |
Included in Payroll and related expenses |  | (1,474) | (6,378) |
Accrued pension and other postretirement costs |  | (29,217) | (30,843) |
Total actuarial items |  | (522) | 69 |
Total |  | (31,213) | (37,152) |
Components of actuarial items [Abstract] |  |  |  |
Unrecognized net actuarial loss (gain) |  | (588) | (140) |
Unamortized prior service cost |  | 66 | 209 |
Total actuarial items |  | (522) | 69 |
Projected and accumulated benefit obligations [Abstract] |  |  |  |
Accumulated benefit obligation, all plans |  | 30,691 | 37,221 |
Plans for which the accumulated benefit obligation exceeds plan assets [Abstract] |  |  |  |
Projected benefit obligation |  | 30,691 | 37,221 |
Accumulated benefit obligation |  | 30,691 | 37,221 |
Fair value of plan assets |  | 0 | 0 |
Components of net periodic pension cost [Abstract] |  |  |  |
Net service cost |  | 0 | 0 | 0
Interest cost |  | 1,997 | 1,122 | 1,016
Expected return on plan assets |  | 0 | 0 | 0
Amortization of actuarial losses |  | 175 | 1,523 | 2,032
Amortization of prior service (credit) cost |  | 144 | 144 | 144
Curtailment and settlement losses |  | 0 | 0 | 0
Net periodic benefit cost (benefit) |  | $ 2,316 | $ 2,789 | 3,192
Weighted average assumptions used to calculate benefit obligations [Abstract] |  |  |  |
Discount rate |  | 5.25% | 5.50% |
Rate of compensation increase |  | 0.00% | 0.00% |
Weighted average assumptions used calculating net periodic benefit cost [Abstract] |  |  |  |
Discount rate |  | 5.50% | 2.50% |
Rate of compensation increase |  | 0.00% | 0.00% |
Expected return on plan assets |  | 0.00% | 0.00% |
Estimated future benefit payments [Abstract] |  |  |  |
2024 |  | $ 3,347 |  |
2025 |  | 3,301 |  |
2026 |  | 1,941 |  |
2027 |  | 8,306 |  |
2028 |  | 3,198 |  |
2029-2033 |  | 9,415 |  |
Defined Benefit Pension [Member] | Non-U.S. Plans [Member] |  |  |  |
Change in benefit obligation [Roll forward] |  |  |  |
Benefit obligation at beginning of year |  | 203,541 | $ 278,173 |
Service cost |  | 3,063 | 4,199 | 4,693
Interest cost |  | 7,346 | 3,200 | 2,968
Plan amendments |  | (15) | 79 |
Actuarial (gains) losses |  | 8,835 | (45,102) |
Benefits paid |  | (17,160) | (16,777) |
Curtailments and settlements |  | (27) | 0 |
Currency translation |  | 5,200 | (20,231) |
Benefit obligation at end of year |  | 210,783 | 203,541 | 278,173
Change in plan assets [Roll forward] |  |  |  |
Fair value of plan assets at beginning of year |  | 65,620 | 75,920 |
Actual return on plan assets |  | 1,976 | 790 |
Company contributions |  | 12,161 | 13,212 |
Benefits paid |  | (17,160) | (16,777) |
Currency translation |  | 690 | (7,525) |
Fair value of plan assets at end of year |  | 63,287 | 65,620 | 75,920
Funded status at end of year |  | (147,496) | (137,921) |
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract] |  |  |  |
Included in other assets |  | 3,929 | 4,715 |
Included in Payroll and related expenses |  | (7,149) | (6,827) |
Accrued pension and other postretirement costs |  | (144,276) | (135,809) |
Total actuarial items |  | 24,891 | 16,392 |
Total |  | (122,605) | (121,529) |
Components of actuarial items [Abstract] |  |  |  |
Unrecognized net actuarial loss (gain) |  | 24,094 | 15,628 |
Unamortized prior service cost |  | 797 | 764 |
Total actuarial items |  | 24,891 | 16,392 |
Projected and accumulated benefit obligations [Abstract] |  |  |  |
Accumulated benefit obligation, all plans |  | 194,361 | 176,056 |
Plans for which the accumulated benefit obligation exceeds plan assets [Abstract] |  |  |  |
Projected benefit obligation |  | 146,898 | 181,207 |
Accumulated benefit obligation |  | 144,213 | 159,433 |
Fair value of plan assets |  | 3,032 | 38,854 |
Components of net periodic pension cost [Abstract] |  |  |  |
Net service cost |  | 3,063 | 4,199 | 4,693
Interest cost |  | 7,346 | 3,200 | 2,968
Expected return on plan assets |  | (2,270) | (1,725) | (1,660)
Amortization of actuarial losses |  | 345 | 4,760 | 7,444
Amortization of prior service (credit) cost |  | 195 | 216 | 189
Curtailment and settlement losses |  | 546 | 1,190 | 632
Net periodic benefit cost (benefit) |  | $ 9,225 | $ 11,840 | 14,266
Weighted average assumptions used to calculate benefit obligations [Abstract] |  |  |  |
Discount rate |  | 3.36% | 3.57% |
Rate of compensation increase |  | 3.12% | 2.60% |
Weighted average assumptions used calculating net periodic benefit cost [Abstract] |  |  |  |
Discount rate |  | 3.57% | 1.19% |
Rate of compensation increase |  | 2.60% | 2.07% |
Expected return on plan assets |  | 4.11% | 2.96% |
Estimated future benefit payments [Abstract] |  |  |  |
2024 |  | $ 14,897 |  |
2025 |  | 15,450 |  |
2026 |  | 17,775 |  |
2027 |  | 14,830 |  |
2028 |  | 14,744 |  |
2029-2033 |  | 74,939 |  |
Other Postretirement Benefits [Member] | U.S. Plans [Member] |  |  |  |
Change in benefit obligation [Roll forward] |  |  |  |
Benefit obligation at beginning of year |  | 4,328 | $ 7,611 |
Service cost |  | 21 | 39 | 102
Interest cost |  | 225 | 178 | 163
Actuarial (gains) losses |  | 183 | (2,525) |
Benefits paid |  | (497) | (975) |
Currency translation |  | 0 | 0 |
Benefit obligation at end of year |  | 4,260 | 4,328 | 7,611
Change in plan assets [Roll forward] |  |  |  |
Fair value of plan assets at beginning of year |  | 0 |  |
Fair value of plan assets at end of year |  | 0 | 0 |
Funded status at end of year |  | (4,260) | (4,328) |
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract] |  |  |  |
Included in Payroll and related expenses |  | (510) | (497) |
Accrued pension and other postretirement costs |  | (3,750) | (3,831) |
Total actuarial items |  | (1,527) | (2,031) |
Total |  | (5,787) | (6,359) |
Components of actuarial items [Abstract] |  |  |  |
Unrecognized net actuarial loss (gain) |  | (1,527) | (2,031) |
Total actuarial items |  | (1,527) | (2,031) |
Components of net periodic pension cost [Abstract] |  |  |  |
Net service cost |  | 21 | 39 | 102
Interest cost |  | 225 | 178 | 163
Amortization of actuarial losses |  | (321) | 342 | 53
Curtailment and settlement losses |  | 0 | 0 | 0
Net periodic benefit cost (benefit) |  | $ (75) | $ 559 | 318
Weighted average assumptions used to calculate benefit obligations [Abstract] |  |  |  |
Discount rate |  | 5.25% | 5.50% |
Rate of compensation increase |  | 0.00% | 0.00% |
Weighted average assumptions used calculating net periodic benefit cost [Abstract] |  |  |  |
Discount rate |  | 5.50% | 2.50% |
Rate of compensation increase |  | 0.00% | 0.00% |
Estimated future benefit payments [Abstract] |  |  |  |
2024 |  | $ 510 |  |
2025 |  | 499 |  |
2026 |  | 467 |  |
2027 |  | 452 |  |
2028 |  | 416 |  |
2029-2033 |  | 1,594 |  |
Other Postretirement Benefits [Member] | Non-U.S. Plans [Member] |  |  |  |
Change in benefit obligation [Roll forward] |  |  |  |
Benefit obligation at beginning of year |  | 6,715 | $ 7,782 |
Service cost |  | 221 | 237 | 278
Interest cost |  | 251 | 55 | 42
Actuarial (gains) losses |  | 801 | (749) |
Benefits paid |  | (681) | (147) |
Currency translation |  | 256 | (463) |
Benefit obligation at end of year |  | 7,563 | 6,715 | 7,782
Change in plan assets [Roll forward] |  |  |  |
Fair value of plan assets at beginning of year |  | 0 |  |
Fair value of plan assets at end of year |  | 0 | 0 |
Funded status at end of year |  | (7,563) | (6,715) |
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract] |  |  |  |
Included in Payroll and related expenses |  | (390) | (666) |
Accrued pension and other postretirement costs |  | (7,173) | (6,049) |
Total actuarial items |  | 1,488 | 743 |
Total |  | (6,075) | (5,972) |
Components of actuarial items [Abstract] |  |  |  |
Unrecognized net actuarial loss (gain) |  | 1,488 | 743 |
Total actuarial items |  | 1,488 | 743 |
Components of net periodic pension cost [Abstract] |  |  |  |
Net service cost |  | 221 | 237 | 278
Interest cost |  | 251 | 55 | 42
Amortization of actuarial losses |  | 8 | 85 | 116
Curtailment and settlement losses |  | 89 | 0 | 67
Net periodic benefit cost (benefit) |  | $ 569 | $ 377 | $ 503
Weighted average assumptions used to calculate benefit obligations [Abstract] |  |  |  |
Discount rate |  | 3.40% | 3.86% |
Rate of compensation increase |  | 4.00% | 4.19% |
Weighted average assumptions used calculating net periodic benefit cost [Abstract] |  |  |  |
Discount rate |  | 3.86% | 0.80% |
Rate of compensation increase |  | 4.19% | 2.88% |
Estimated future benefit payments [Abstract] |  |  |  |
2024 |  | $ 390 |  |
2025 |  | 621 |  |
2026 |  | 205 |  |
2027 |  | 1,525 |  |
2028 |  | 785 |  |
2029-2033 |  | 4,897 |  |
Other Retirement Obligations [Member] |  |  |  |
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract] |  |  |  |
Accrued pension and other postretirement costs |  | (11,087) | $ (10,560) |
Dr. Felix Zandman [Member] | Non-qualified Pension Plans [Member] |  |  |  |
Defined benefit pension plans [Abstract] |  |  |  |
Assets held in trust |  | 445 | $ 1,023 |
Deferred compensation arrangement, annual retirement benefit to surviving spouse |  | $ 614 |  |
[1] | Amounts included in accumulated other comprehensive loss are presented in this table pre-tax

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- Definition Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (j) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -Publisher FASB -URI https://asc.fasb.org//1943274/2147482790/220-10-45-14A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (j) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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