Pension Plans - Qualified Plan - Change in Plan Assets (Details) - Pension Plan [Member] - Qualified Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	$ 71,221	$ 66,000
Actual return on plan assets	8,202	9,801
Employer contributions	299	1,727
Benefits paid	(7,236)	(6,307)
Fair value of plan assets at end of year	72,486	71,221
Funded status and accrued pension cost	$ (4,194)	$ (15,527)