Pensions and Other Postretirement Benefits (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2021 USD ($) Plan	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract]
Included in other assets		$ 3,145	$ 312
Included in Payroll and related expenses		(9,308)	(9,753)
Accrued pension and other postretirement costs		(271,672)	(300,113)
Total actuarial items	[1]	84,383	107,652
Components of actuarial items [Abstract]
Total actuarial items	[1]	84,383	107,652
Components of net periodic pension cost [Abstract]
Amounts that will be amortized from accumulated other comprehensive loss into net periodic pension cost during next fiscal year		$ 7,200
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		$ 6,557	6,363	$ 6,481
Deferred Compensation [Member]
Defined benefit pension plans [Abstract]
Assets held in trust		31,453	27,491
Non-qualified Pension Plans [Member]
Defined benefit pension plans [Abstract]
Assets held in trust		27,604	29,157
Defined Benefit Pension [Member] | U.S. Plans [Member]
Change in benefit obligation [Roll forward]
Benefit obligation at beginning of year		45,564	42,383
Service cost		0	0	0
Interest cost		1,016	1,366	1,696
Plan amendments		0	0
Actuarial (gains) losses		870	3,623
Benefits paid		(1,837)	(1,808)
Curtailments and settlements		0	0
Currency translation		0	0
Benefit obligation at end of year		45,613	45,564	42,383
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		1,837	1,808
Benefits paid		(1,837)	(1,808)
Currency translation		0	0
Fair value of plan assets at end of year		0	0	0
Funded status at end of year		(45,613)	(45,564)
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract]
Included in other assets		0	0
Included in Payroll and related expenses		(35)	(35)
Accrued pension and other postretirement costs		(45,578)	(45,529)
Total actuarial items		9,403	10,709
Total		(36,210)	(34,855)
Components of actuarial items [Abstract]
Unrecognized net actuarial loss (gain)		9,050	10,212
Unamortized prior service cost		353	497
Total actuarial items		9,403	10,709
Projected and accumulated benefit obligations [Abstract]
Accumulated benefit obligation, all plans		45,613	45,564
Plans for which the accumulated benefit obligation exceeds plan assets [Abstract]
Projected benefit obligation		45,613	45,564
Accumulated benefit obligation		45,613	45,564
Fair value of plan assets		0	0
Components of net periodic pension cost [Abstract]
Net service cost		0	0	0
Interest cost		1,016	1,366	1,696
Expected return on plan assets		0	0	0
Amortization of actuarial losses		2,032	1,609	827
Amortization of prior service (credit) cost		144	144	144
Curtailment and settlement losses		0	0	0
Net periodic benefit cost (benefit)		$ 3,192	$ 3,119	2,667
Weighted average assumptions used to calculate benefit obligations [Abstract]
Discount rate		2.50%	2.25%
Rate of compensation increase		0.00%	0.00%
Weighted average assumptions used calculating net periodic benefit cost [Abstract]
Discount rate		2.25%	3.25%
Rate of compensation increase		0.00%	0.00%
Expected return on plan assets		0.00%	0.00%
Estimated future benefit payments [Abstract]
2022		$ 1,940
2023		8,859
2024		3,376
2025		10,029
2026		3,247
2027-2031		9,993
Defined Benefit Pension [Member] | Non-U.S. Plans [Member]
Change in benefit obligation [Roll forward]
Benefit obligation at beginning of year		307,809	$ 283,561
Service cost		4,693	4,382	3,382
Interest cost		2,968	3,783	5,116
Plan amendments		490	1,015
Actuarial (gains) losses		(7,816)	10,920
Benefits paid		(14,773)	(17,737)
Curtailments and settlements		(34)	(464)
Currency translation		(15,164)	22,349
Benefit obligation at end of year		278,173	307,809	283,561
Change in plan assets [Roll forward]
Fair value of plan assets at beginning of year		74,334	73,629
Actual return on plan assets		2,792	2,811
Company contributions		13,095	12,149
Benefits paid		(14,773)	(17,737)
Currency translation		472	3,482
Fair value of plan assets at end of year		75,920	74,334	73,629
Funded status at end of year		(202,253)	(233,475)
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract]
Included in other assets		3,145	312
Included in Payroll and related expenses		(7,602)	(8,314)
Accrued pension and other postretirement costs		(197,796)	(225,473)
Total actuarial items		72,437	94,480
Total		(129,816)	(138,995)
Components of actuarial items [Abstract]
Unrecognized net actuarial loss (gain)		71,632	94,072
Unamortized prior service cost		805	408
Total actuarial items		72,437	94,480
Projected and accumulated benefit obligations [Abstract]
Accumulated benefit obligation, all plans		259,087	287,169
Plans for which the accumulated benefit obligation exceeds plan assets [Abstract]
Projected benefit obligation		247,796	288,212
Accumulated benefit obligation		235,764	275,816
Fair value of plan assets		44,604	59,070
Components of net periodic pension cost [Abstract]
Net service cost		4,693	4,382	3,382
Interest cost		2,968	3,783	5,116
Expected return on plan assets		(1,660)	(2,004)	(1,956)
Amortization of actuarial losses		7,444	6,554	5,374
Amortization of prior service (credit) cost		189	378	197
Curtailment and settlement losses		632	1,148	2,183
Net periodic benefit cost (benefit)		$ 14,266	$ 14,241	14,296
Weighted average assumptions used to calculate benefit obligations [Abstract]
Discount rate		1.19%	1.02%
Rate of compensation increase		2.07%	2.02%
Weighted average assumptions used calculating net periodic benefit cost [Abstract]
Discount rate		1.02%	1.40%
Rate of compensation increase		2.02%	2.24%
Expected return on plan assets		2.37%	2.35%
Estimated future benefit payments [Abstract]
2022		$ 18,924
2023		16,333
2024		16,061
2025		17,124
2026		19,069
2027-2031		78,158
Other Postretirement Benefits [Member] | U.S. Plans [Member]
Change in benefit obligation [Roll forward]
Benefit obligation at beginning of year		7,723	$ 7,689
Service cost		102	112	157
Interest cost		163	236	286
Actuarial (gains) losses		545	550
Benefits paid		(922)	(864)
Currency translation		0	0
Benefit obligation at end of year		7,611	7,723	7,689
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		(7,611)	(7,723)
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract]
Included in Payroll and related expenses		(975)	(929)
Accrued pension and other postretirement costs		(6,636)	(6,794)
Total actuarial items		837	344
Total		(6,774)	(7,379)
Components of actuarial items [Abstract]
Unrecognized net actuarial loss (gain)		837	344
Total actuarial items		837	344
Components of net periodic pension cost [Abstract]
Net service cost		102	112	157
Interest cost		163	236	286
Amortization of actuarial losses		53	26	(138)
Curtailment and settlement losses		0	0	0
Net periodic benefit cost (benefit)		$ 318	$ 374	305
Weighted average assumptions used to calculate benefit obligations [Abstract]
Discount rate		2.50%	2.25%
Rate of compensation increase		0.00%	0.00%
Weighted average assumptions used calculating net periodic benefit cost [Abstract]
Discount rate		2.25%	3.25%
Rate of compensation increase		0.00%	0.00%
Estimated future benefit payments [Abstract]
2022		$ 975
2023		871
2024		802
2025		706
2026		619
2027-2031		2,131
Other Postretirement Benefits [Member] | Non-U.S. Plans [Member]
Change in benefit obligation [Roll forward]
Benefit obligation at beginning of year		8,510	$ 8,109
Service cost		278	284	284
Interest cost		42	64	123
Actuarial (gains) losses		(77)	35
Benefits paid		(319)	(706)
Currency translation		(652)	724
Benefit obligation at end of year		7,782	8,510	8,109
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		(7,782)	(8,510)
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract]
Included in Payroll and related expenses		(696)	(475)
Accrued pension and other postretirement costs		(7,086)	(8,035)
Total actuarial items		1,706	2,119
Total		(6,076)	(6,391)
Components of actuarial items [Abstract]
Unrecognized net actuarial loss (gain)		1,706	2,119
Total actuarial items		1,706	2,119
Components of net periodic pension cost [Abstract]
Net service cost		278	284	284
Interest cost		42	64	123
Amortization of actuarial losses		116	132	107
Curtailment and settlement losses		67	177	0
Net periodic benefit cost (benefit)		$ 503	$ 657	$ 514
Weighted average assumptions used to calculate benefit obligations [Abstract]
Discount rate		0.80%	0.54%
Rate of compensation increase		2.88%	2.87%
Weighted average assumptions used calculating net periodic benefit cost [Abstract]
Discount rate		0.54%	0.81%
Rate of compensation increase		2.87%	2.87%
Estimated future benefit payments [Abstract]
2022		$ 696
2023		255
2024		239
2025		476
2026		169
2027-2031		3,753
Other Retirement Obligations [Member]
Amounts recognized in balance sheet associated with retirement benefit plans [Abstract]
Accrued pension and other postretirement costs		(14,576)	$ (14,282)
Dr. Felix Zandman [Member] | Non-qualified Pension Plans [Member]
Defined benefit pension plans [Abstract]
Assets held in trust		630	$ 1,243
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.