Retirement Plans, Defined Contribution Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Contribution Plan [Member]
Defined Contribution Pension and Other Postretirement Benefit Expense [Abstract]
Percentage of matching contributions under defined contribution plan	4.00%
Total expense for defined contribution plans	$ 7,800	$ 6,700	$ 6,100
Pension Plan [Member]
Benefit obligation [Roll Forward]
Benefit obligation at beginning of year	41,780	45,631
Service cost	1,622	1,740	1,601
Interest cost	953	851	1,022
Foreign currency exchange rate changes	(1,488)	(291)
Benefits and settlements paid	(1,724)	(3,298)
Actuarial gain	(8,776)	(2,853)
Benefit obligation at end of year	32,367	41,780	45,631
Change in fair value of plan assets [Roll Forward]
Plan assets at beginning of year	32,982	35,676
Company contributions	1,027	947
Foreign currency exchange rate changes	(2,430)	(297)
Benefits paid	(1,724)	(1,718)
Settlement payments	0	(1,580)
Actual loss on plan assets	(9,926)	(46)
Plan assets at end of year	19,929	32,982	35,676
Funded status	(12,438)	(8,798)
Accumulated benefit obligation	31,472	40,873
Amounts recognized in Consolidated Balance Sheets [Abstract]
Accrued employee and retiree benefits	(16,822)	(18,375)
Other accrued expenses	(745)	(693)
Other assets	5,129	10,270
Net liability	(12,438)	(8,798)
Components of annual benefit cost [Abstract]
Service cost	1,622	1,740	1,601
Interest cost	953	851	1,022
Expected return on plan assets	(785)	(728)	(813)
Recognized actuarial loss	32	267	41
Settlement income	0	(151)	0
Defined benefit expense	$ 1,822	$ 1,979	$ 1,851
Weighted average liability assumptions [Abstract]
Discount rate	5.12%	2.35%
Expected return on plan assets	4.89%	2.54%
Rate of compensation increase	0.90%	1.02%
Weighted average cost assumption [Abstract]
Discount rate	2.35%	1.87%	2.69%
Expected return on plan assets	2.54%	2.17%	2.68%
Rate of compensation increase	1.02%	1.07%	0.88%
Estimated Future Benefit Payments [Abstract]
2023	$ 1,700
2024	9,000
2025	1,500
2026	1,600
2027	1,600
2028 through 2032	10,100
Estimated future employer contributions for next fiscal year	800
Amounts recognized in Accumulated Other Comprehensive Loss [Abstract]
Unrecognized net actuarial loss	2,210	$ 221
Prior service cost	153	179
Total before tax effects	2,363	400
Other Comprehensive Income (Loss), Pension Adjustment, Net of Tax [Abstract]
Net actuarial (loss) gain arising during the period	(1,466)	1,528	$ (1,293)
Prior service cost	0	0	(32)
Amortization of actuarial loss, included in defined benefit expense	27	84	32
Pension adjustment, net of tax	$ (1,439)	$ 1,612	$ (1,293)