Retirement Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
United States
Defined Benefit Plan Disclosure
Interest cost	$ 71	$ 49	$ 143	$ 97
Expected return on plan assets	(64)	(66)	(128)	(132)
Recognized net actuarial loss	16	18	31	35
Net periodic pension (income) cost	23	1	46	0
United Kingdom
Defined Benefit Plan Disclosure
Interest cost	56	43	112	86
Expected return on plan assets	(84)	(76)	(168)	(152)
Amortization of prior service costs and transition amount	6	6	12	12
Recognized net actuarial loss	3	40	6	80
Net periodic pension (income) cost	$ (19)	$ 13	$ (38)	$ 26