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Retirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Postemployment Benefits [Abstract]
Service cost	$ 124	$ 194	$ 372	$ 582
Interest cost	373	263	1,119	789
Expected return on plan assets	(663)	(784)	(1,989)	(2,352)
Amortization of net loss	98	102	294	305
Net Periodic Benefit Income	$ (68)	$ (225)	$ (204)	$ (676)

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