Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Schedule of Pension Plan (Income) Cost

Pension plan (income) cost includes the following components:

	Three months ended September 30,				Nine months ended September 30,
(in thousands)	2023		2022		2023		2022
Service cost for benefits earned	$	7,190	$	12,560	$	21,572	$	37,681
Interest cost on benefit obligation	12,548		9,941		37,644		29,823
Expected return on plan assets	(17,217)		(13,639)		(51,652)		(40,917)
Prior service cost amortization	362		361		1,085		1,082
Net actuarial (gain) loss amortization	(3,833)		1,830		(11,498)		5,490
Pension plan (income) cost (1)	$	(950)	$	11,053	$	(2,849)	$	33,159

(1)Pension plan (income) cost represents plan (income) cost before reimbursements between Indemnity and the Exchange and its subsidiaries. The components of pension plan (income) cost other than the service cost components are included in the line item "Other income" in the Statements of Operations, net of reimbursements between Indemnity and the Exchange and its subsidiaries.