Employee Benefit Plans - Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Change in Benefit Obligation:
Benefit obligation at beginning of period	$ 61,732	$ 117,472
Service cost	37	53
Interest cost	$ 3,050	$ 1,910
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Income (Expense), Nonoperating, Net	Interest Income (Expense), Nonoperating, Net
Actuarial gain	$ (1,019)	$ (44,778)
Plan amendments		149
Benefits paid	(2,577)	(1,915)
Foreign-exchange rate changes	3,028	(11,159)
Benefit obligation at end of year	64,289	61,732
Change in Plan Assets:
Fair value of plan assets at beginning of period	45,694	89,972
Actual return on plan assets	3,559	(36,679)
Employer contributions	2,993	2,866
Benefits paid	(2,473)	(1,818)
Foreign-exchange rate changes	2,308	(8,647)
Fair value of plan assets at end of period	52,081	45,694
Funded status at end of year	(12,208)	(16,038)
Net amount recognized in the Consolidated Balance Sheets:
Pension liability, net (a)	(13,192)	(16,917)
Minimum regulatory benefit for Philippine legal entity	1,000	800
Amounts recognized in accumulated other comprehensive loss, net of tax consist of:
Net actuarial gain (loss)	(174)	(3,583)
Net amount recognized in accumulated other comprehensive loss, net of tax	174	3,583
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate projected benefit obligation	64,289	61,732
Aggregate accumulated benefit obligation	64,289	61,732
Aggregate fair value of plan assets	52,081	45,694
Pension liabilities, net	13,192	16,917
U.K. And Asterion Plans
Net amount recognized in the Consolidated Balance Sheets:
Pension liability, net (a)	(13,192)	(16,917)
Plans with underfunded or non-funded accumulated benefit obligation:
Pension liabilities, net	13,192	16,917
U.K. Pension Plan
Net amount recognized in the Consolidated Balance Sheets:
Pension liability, net (a)	(10,100)	(13,700)
Plans with underfunded or non-funded accumulated benefit obligation:
Pension liabilities, net	10,100	13,700
Asterion Pension Plan
Net amount recognized in the Consolidated Balance Sheets:
Pension liability, net (a)	(1,600)	(1,700)
Plans with underfunded or non-funded accumulated benefit obligation:
Pension liabilities, net	1,600	1,700
Norway Pension Plan
Net amount recognized in the Consolidated Balance Sheets:
Pension liability, net (a)	(1,500)	(600)
Plans with underfunded or non-funded accumulated benefit obligation:
Pension liabilities, net	1,500	600
German Pension Plan
Change in Plan Assets:
Fair value of plan assets at end of period	0
Net amount recognized in the Consolidated Balance Sheets:
Pension liability, net (a)	(1,000)	(1,200)
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate fair value of plan assets	0
Pension liabilities, net	1,000	$ 1,200
German Pension Plan | Unfunded Plan
Change in Plan Assets:
Fair value of plan assets at end of period	0
Plans with underfunded or non-funded accumulated benefit obligation:
Aggregate fair value of plan assets	$ 0