Employee Benefit Plans - Actuarial Assumptions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in benefit obligation:
Beginning balance	$ (84,692)	$ (87,806)
Purchase price allocation adjustment		(2,498)
Service cost	(144)	(166)
Interest cost	(2,079)	(1,928)
Actuarial gain (loss)	16,521	3,260
Benefits paid	2,602	2,572
Plan participants’ contributions	(18)	(18)
Foreign currency translation loss (gain)	301	42
Effect of settlement	2,912	1,850
Ending balance	(64,597)	(84,692)	$ (87,806)
Change in plan assets:
Beginning balance	84,283	78,661
Purchase price allocation adjustment		1,112
Actual return on plan assets	(14,346)	7,904
Employer contributions	154	1,240
Benefits paid	(2,500)	(2,575)
Effect of settlement	(2,912)	(1,850)
Plan participants’ contributions	38	34
Foreign currency translation gain	(75)	(243)
Ending balance	64,642	84,283	78,661
Funded status	45	(409)
Amounts recognized on the consolidated balance sheet:
Pension and post-retirement asset (liability)	45
Pension and post-retirement asset (liability)		(409)
Accumulated other comprehensive loss (income)	3,308	1,246
Amounts in accumulated other comprehensive loss consist of:
Net loss	3,308	1,224
Prior service cost	0	22
Other changes in plan assets and benefit obligations recognized in other comprehensive loss (income):
Net loss (gain)	2,568	(6,821)
Amortization of net (gain) loss	(205)	(1,524)
Amortization of prior service cost	(21)	(30)
Amount recognized due to settlement	(308)	(24)
Foreign currency translation gain	(5)	70
Effect of tax	347
Total recognized in other comprehensive loss (income)	2,376	(8,329)	(1,433)
Information for plans with accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	4,182	40,999
Accumulated benefit obligation	3,808	40,519
Fair value of plan assets	2,651	37,405
Pension
Change in plan assets:
Beginning balance	84,283
Ending balance	64,642	84,283
Other Post-Retirement Benefits (OPRB)
Change in benefit obligation:
Beginning balance	(629)	(647)
Purchase price allocation adjustment		0
Service cost	0	0
Interest cost	(11)	(8)
Actuarial gain (loss)	55	21
Benefits paid	0	5
Plan participants’ contributions	0	0
Foreign currency translation loss (gain)	0	0
Effect of settlement	92	0
Ending balance	(493)	(629)	(647)
Change in plan assets:
Beginning balance	0	0
Purchase price allocation adjustment		0
Actual return on plan assets	0	0
Employer contributions	92	5
Benefits paid	0	(5)
Effect of settlement	(92)	0
Plan participants’ contributions	0	0
Foreign currency translation gain	0	0
Ending balance	0	0	0
Funded status	(493)	(629)
Amounts recognized on the consolidated balance sheet:
Pension and post-retirement asset (liability)	(493)	(629)
Accumulated other comprehensive loss (income)	(59)	(15)
Amounts in accumulated other comprehensive loss consist of:
Net loss	(59)	(15)
Prior service cost	0	0
Other changes in plan assets and benefit obligations recognized in other comprehensive loss (income):
Net loss (gain)	(147)	(28)
Amortization of net (gain) loss	0	0
Amortization of prior service cost	0	0
Amount recognized due to settlement	11	0
Foreign currency translation gain	0	0
Effect of tax	0
Total recognized in other comprehensive loss (income)	(136)	(28)
Information for plans with accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	493	629
Accumulated benefit obligation	493	629
Fair value of plan assets	0	0
Retirement Income Plan | Pension
Change in benefit obligation:
Beginning balance	(43,693)	(47,509)
Purchase price allocation adjustment		0
Service cost	0	0
Interest cost	(1,025)	(947)
Actuarial gain (loss)	6,830	1,571
Benefits paid	1,257	1,342
Plan participants’ contributions	0	0
Foreign currency translation loss (gain)	0	0
Effect of settlement	2,820	1,850
Ending balance	(33,811)	(43,693)	(47,509)
Change in plan assets:
Beginning balance	46,878	45,030
Purchase price allocation adjustment		0
Actual return on plan assets	(7,809)	4,371
Employer contributions	0	669
Benefits paid	(1,257)	(1,342)
Effect of settlement	(2,820)	(1,850)
Plan participants’ contributions	0	0
Foreign currency translation gain	0	0
Ending balance	34,992	46,878	45,030
Funded status	1,181	3,185
Amounts recognized on the consolidated balance sheet:
Pension and post-retirement asset (liability)	1,181	3,185
Accumulated other comprehensive loss (income)	3,826	566
Amounts in accumulated other comprehensive loss consist of:
Net loss	3,826	566
Prior service cost	0	0
Other changes in plan assets and benefit obligations recognized in other comprehensive loss (income):
Net loss (gain)	3,680	(3,558)
Amortization of net (gain) loss	(101)	(873)
Amortization of prior service cost	0	0
Amount recognized due to settlement	(319)	(24)
Foreign currency translation gain	0	0
Effect of tax	150
Total recognized in other comprehensive loss (income)	3,410	(4,455)
National Service-Related Pension Plan (NSRPP) | Pension
Change in benefit obligation:
Beginning balance	(36,421)	(38,227)
Purchase price allocation adjustment		0
Service cost	0	0
Interest cost	(990)	(936)
Actuarial gain (loss)	9,597	1,592
Benefits paid	1,210	1,150
Plan participants’ contributions	0	0
Foreign currency translation loss (gain)	0	0
Effect of settlement	0	0
Ending balance	(26,604)	(36,421)	(38,227)
Change in plan assets:
Beginning balance	34,603	32,061
Purchase price allocation adjustment		0
Actual return on plan assets	(6,394)	3,187
Employer contributions	0	505
Benefits paid	(1,210)	(1,150)
Effect of settlement	0	0
Plan participants’ contributions	0	0
Foreign currency translation gain	0	0
Ending balance	26,999	34,603	32,061
Funded status	395	(1,818)
Amounts recognized on the consolidated balance sheet:
Pension and post-retirement asset (liability)	395
Pension and post-retirement asset (liability)		(1,818)
Accumulated other comprehensive loss (income)	(474)	752
Amounts in accumulated other comprehensive loss consist of:
Net loss	(474)	752
Prior service cost	0	0
Other changes in plan assets and benefit obligations recognized in other comprehensive loss (income):
Net loss (gain)	(1,070)	(3,069)
Amortization of net (gain) loss	(117)	(651)
Amortization of prior service cost	0	0
Amount recognized due to settlement		0
Foreign currency translation gain	0	0
Effect of tax	197
Total recognized in other comprehensive loss (income)	(990)	(3,720)
Information for plans with accumulated benefit obligation in excess of plan assets:
Projected benefit obligation		36,421
Accumulated benefit obligation		36,421
Fair value of plan assets		34,603
Superannuation | Pension
Change in benefit obligation:
Beginning balance	(1,347)	(1,423)
Purchase price allocation adjustment		0
Service cost	(47)	(59)
Interest cost	(31)	(19)
Actuarial gain (loss)	76	78
Benefits paid	15	14
Plan participants’ contributions	(18)	(18)
Foreign currency translation loss (gain)	84	80
Effect of settlement	0	0
Ending balance	(1,268)	(1,347)	(1,423)
Change in plan assets:
Beginning balance	1,654	1,570
Purchase price allocation adjustment		0
Actual return on plan assets	(124)	320
Employer contributions	0	0
Benefits paid	(33)	(27)
Effect of settlement	0	0
Plan participants’ contributions	38	34
Foreign currency translation gain	(27)	(243)
Ending balance	1,508	1,654	1,570
Funded status	240	307
Amounts recognized on the consolidated balance sheet:
Pension and post-retirement asset (liability)	240	307
Accumulated other comprehensive loss (income)	(32)	(72)
Amounts in accumulated other comprehensive loss consist of:
Net loss	(32)	(94)
Prior service cost	0	22
Other changes in plan assets and benefit obligations recognized in other comprehensive loss (income):
Net loss (gain)	58	(181)
Amortization of net (gain) loss	0	0
Amortization of prior service cost	(21)	(30)
Amount recognized due to settlement	0	0
Foreign currency translation gain	(5)	70
Effect of tax	0
Total recognized in other comprehensive loss (income)	32	(141)
Information for plans with accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	1,268	1,347
Accumulated benefit obligation	1,208	1,272
Fair value of plan assets	1,508	1,654
Austria Plans | Pension
Change in benefit obligation:
Beginning balance	(2,602)	0
Purchase price allocation adjustment		(2,498)
Service cost	(97)	(107)
Interest cost	(22)	(18)
Actuarial gain (loss)	(37)	(2)
Benefits paid	120	61
Plan participants’ contributions	0	0
Foreign currency translation loss (gain)	217	(38)
Effect of settlement	0	0
Ending balance	(2,421)	(2,602)	0
Change in plan assets:
Beginning balance	1,148	0
Purchase price allocation adjustment		1,112
Actual return on plan assets	(19)	26
Employer contributions	62	61
Benefits paid	0	(51)
Effect of settlement	0	0
Plan participants’ contributions	0	0
Foreign currency translation gain	(48)	0
Ending balance	1,143	1,148	$ 0
Funded status	(1,278)	(1,454)
Amounts recognized on the consolidated balance sheet:
Pension and post-retirement asset (liability)	(1,278)	(1,454)
Accumulated other comprehensive loss (income)	47	15
Amounts in accumulated other comprehensive loss consist of:
Net loss	47	15
Prior service cost	0	0
Other changes in plan assets and benefit obligations recognized in other comprehensive loss (income):
Net loss (gain)	47	15
Amortization of net (gain) loss	13	0
Amortization of prior service cost	0	0
Amount recognized due to settlement	0	0
Foreign currency translation gain	0	0
Effect of tax	0
Total recognized in other comprehensive loss (income)	60	15
Information for plans with accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	2,421	2,602
Accumulated benefit obligation	2,107	2,197
Fair value of plan assets	$ 1,143	$ 1,148