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Retirement Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Retirement Benefits [Abstract]
Service cost	$ 603	$ 693	$ 1,853	$ 2,106
Interest cost	516	443	1,559	1,337
Recognized net actuarial loss	267	353	801	1,060
Net periodic benefit cost	$ 1,386	$ 1,489	$ 4,213	$ 4,503

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

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Amount of cost recognized for passage of time related to defined benefit plan.

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