Pension Plans And Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2023

Pension Plans And Other Postretirement Benefits [Abstract]

Components Of Net Periodic Benefit Costs

	Pension Benefits
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2023		2022		2023		2022
Service cost	$	400	$	707	$	1,201	$	2,121
Interest cost		4,309		3,202		12,926		9,605
Expected return on plan assets		(5,673)		(5,895)		(17,018)		(17,684)
Amortization of prior service cost		171		134		513		402
Amortization of actuarial loss		810		435		2,428		1,306
Net periodic benefit cost (credit)	$	17	$	(1,417)	$	50	$	(4,250)
	Other
	Postretirement Benefits
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
	2023		2022		2023		2022
Service cost	$	337	$	478	$	1,011	$	1,433
Interest cost		1,119		842		3,357		2,527
Expected return on plan assets		(1,093)		(1,142)		(3,279)		(3,376)
Amortization of actuarial loss		(329)		(334)		(988)		(1,002)
Net periodic benefit cost (credit)	$	34	$	(156)	$	101	$	(418)