Pensions and Other Postretirement Benefit Plans (Schedule of Plan Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Pension plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of year	$ 225,327	$ 239,051
Actual return on plan assets, net of expenses	(57,868)	(2,648)
Employer contributions	15,071	2,431
Plan participants' contributions	132	175
Benefits paid	(7,946)	(9,399)
Settlements	(90,568)	(3,694)
Foreign currency changes	(9,219)	(589)
Fair value of plan assets, end of year	74,929	225,327
Other postretirement benefits
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning of year	0	0
Actual return on plan assets, net of expenses	0	0
Employer contributions	3,234	3,338
Plan participants' contributions	0	0
Benefits paid	(3,234)	(3,338)
Settlements	0	0
Foreign currency changes	0	0
Fair value of plan assets, end of year	$ 0	$ 0