Reconciliation of Benefit Obligations and Plan Assets of U.K. Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in benefit obligation:
Projected benefit obligation at beginning of year	$ 41,398	$ 47,200
Interest cost	669	554	$ 736
Actuarial (gains) losses (1)	(12,135)	(3,303)
Benefits paid	(1,191)	(2,679)
Prior service cost		36
Foreign currency exchange rate changes	(4,144)	(410)
Projected benefit obligation at end of year	24,597	41,398	47,200
Accumulated benefit obligation at end of year	24,597	41,398
Change in plan assets:
Fair value of plan assets at beginning of year	44,187	45,689
Actual return on plan assets	(12,927)	592
Employer contributions	971	1,055
Benefits paid	(1,191)	(2,679)
Foreign currency exchange rate changes	(4,431)	(470)
Fair value of plan assets at end of year	26,609	44,187	45,689
Funded status at end of year	2,012	2,789
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost:
Net actuarial losses at beginning of year	(7,206)	(10,958)
Net actuarial gains (losses) during the year	(2,078)	2,775
Prior service cost arising during the year		(36)
Amounts reclassified from accumulated other comprehensive income to income before income taxes	412	959
Foreign currency exchange rate changes	796	54
Net actuarial losses	$ (8,076)	$ (7,206)	$ (10,958)