Pensions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Gain (loss) due to settlement	$ (62)	$ 0	$ 328	$ 15
Remeasurement gain (loss)	(3,466)	0	5,226	164
Qualified Plan | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution costs	7,500	5,000	22,500	20,000
Expected future employer contribution, current fiscal year	30,000		30,000
Nonqualified Plan | Pension Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution costs	100	$ 200	400	$ 1,000
Expected future employer contribution, current fiscal year	$ 800		$ 800