Pensions and Other Postretirement Benefits (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, employer contribution next fiscal year	$ 1,200
Ultimate health care cost trend rate	4.14%
Defined contribution plan matching expense	$ 1,100	$ 1,000	$ 800
Accrued pension and other postretirement costs	7,777	12,253
Other Retirement Obligations
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actuarial gains adjustment	$ 453	$ 591
Ultimate health care cost trend rate	6.50%	6.00%
Other retirement obligations	$ 900	$ 1,000
Accrued pension and other postretirement costs	2,197	2,658
United States | Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actuarial gains adjustment	533	103
Accrued pension and other postretirement costs	1,913	2,519
Foreign Plan | Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actuarial gains adjustment	7,125	792
Accrued pension and other postretirement costs	2,727	6,065
Nonqualified Plan | Deferred Compensation, Excluding Share-based Payments and Retirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Assets held-in-trust	3,900	4,200
Accrued pension and other postretirement costs	5,300	6,000
Unfunded Plan | Nonqualified Plan | United States | Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Assets held-in-trust	1,500	1,900
Non qualified pension plan liabilities	$ 2,100	$ 2,600