Postretirement Plans (Tables)

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost

The components of net periodic benefit (income)/cost were as follows:

	Nine months ended September 30		Three months ended September 30
Pension Plans	2023	2022	2023	2022
Service cost	$3	$2	$1
Interest cost	2,115	1,561	705	$520
Expected return on plan assets	(2,581)	(2,843)	(861)	(948)
Amortization of prior service credits	(61)	(61)	(20)	(20)
Recognized net actuarial loss	125	681	42	227
Settlement/curtailment gain		(4)		(4)
Net periodic benefit income	($399)	($664)	($133)	($225)
Net periodic benefit cost included in Loss from operations	$3	$2	$1
Net periodic benefit income included in Other income, net	(402)	(666)	(134)	($225)
Net periodic benefit income included in Loss before income taxes	($399)	($664)	($133)	($225)

	Nine months ended September 30		Three months ended September 30
Other Postretirement Plans	2023	2022	2023	2022
Service cost	$36	$54	$12	$18
Interest cost	111	73	37	24
Expected return on plan assets	(6)	(8)	(2)	(3)
Amortization of prior service credits	(17)	(26)	(6)	(9)
Recognized net actuarial gain	(132)	(83)	(44)	(27)
Net periodic benefit (income)/cost	($8)	$10	($3)	$3
Net periodic benefit cost included in Loss from operations	$47	$59	$16	$20
Net periodic benefit income included in Other income, net	(44)	(44)	(15)	(15)
Net periodic benefit cost included in Loss before income taxes	$3	$15	$1	$5