Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2024

Retirement Benefits [Abstract]

Schedule of Pension Plan Income

Pension plan income includes the following components for the three months ended March 31:

(in thousands)	2024		2023
Service cost for benefits earned	$	8,651	$	7,191
Interest cost on benefit obligation	13,145		12,548
Expected return on plan assets	(20,198)		(17,218)
Prior service cost amortization	389		362
Net actuarial gain amortization	(1,751)		(3,833)
Settlement gain	(249)		—
Pension plan income (1)	$	(13)	$	(950)

(1)Pension plan income represents total plan income before reimbursements between Indemnity and the Exchange and its subsidiaries. The components of pension plan income 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.