Pension Plans And Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2023

Pension Plans And Other Postretirement Benefits [Abstract]

Components Of Net Periodic Benefit Costs

	Pension Benefits
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2023		2022		2023		2022
Service cost	$	400	$	707	$	801	$	1,414
Interest cost		4,309		3,202		8,617		6,403
Expected return on plan assets		(5,673)		(5,894)		(11,345)		(11,789)
Amortization of prior service cost		171		134		342		268
Amortization of actuarial loss		809		436		1,618		871
Net periodic benefit cost (credit)	$	16	$	(1,415)	$	33	$	(2,833)

	Other
	Postretirement Benefits
		Three Months Ended				Six Months Ended
		June 30,				June 30,
	2023		2022		2023		2022
Service cost	$	337	$	477	$	674	$	955
Interest cost		1,119		843		2,238		1,685
Expected return on plan assets		(1,093)		(1,126)		(2,186)		(2,251)
Amortization of actuarial loss		(330)		(334)		(659)		(668)
Net periodic benefit cost (credit)	$	33	$	(140)	$	67	$	(279)