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Pension and Supplemental Executive Retirement Plans - Defined Benefit Plan Activity (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Components of net periodic pension cost
Interest cost	$ 85	$ 78	$ 255	$ 234
Expected return on plan assets	(167)	(118)	(501)	(354)
Amortization of net actuarial loss	107	127	321	381
Net periodic benefit cost	25	87	75	261
Contributions paid	0	0	0	3,835
Service cost	0	0	0	0
Amortization of prior service cost	$ 0	$ 0	$ 0	$ 0

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Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.

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