Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2023

Defined Benefit Plan Disclosure

Schedule of Costs of Retirement Plans

The following table summarizes the expense associated with the contributions made to these plans for the periods presented:

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
United States	$	793	$	390	$	1,407	$	695
Canada	32		45		94		105
United Kingdom	315		379		576		379
	$	1,140	$	814	$	2,077	$	1,179

United States

Defined Benefit Plan Disclosure

Schedule of Net Benefit Costs

Net periodic pension costs for the United States defined benefit pension plan for the three and six months ended June 30, 2023 and 2022 were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
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 cost	$	23	$	1	$	46	$	—

United Kingdom

Defined Benefit Plan Disclosure

Schedule of Net Benefit Costs

Net periodic pension costs for the United Kingdom defined benefit pension plan for the three and six months ended June 30, 2023 and 2022 were as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2023		2022		2023		2022
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