Retirement Plans - Schedule of Net Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
United States
Defined Benefit Plan Disclosure
Interest cost	$ 71	$ 49	$ 214	$ 146
Expected return on plan assets	(64)	(66)	(192)	(198)
Recognized net actuarial loss	16	18	47	53
Net periodic pension (income) cost	23	1	69	1
United Kingdom
Defined Benefit Plan Disclosure
Interest cost	56	42	168	126
Expected return on plan assets	(84)	(74)	(252)	(222)
Amortization of prior service costs and transition amount	6	6	18	18
Recognized net actuarial loss	3	38	9	114
Net periodic pension (income) cost	$ (19)	$ 12	$ (57)	$ 36