v3.26.1
PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS
 6 Months Ended
Jun. 30, 2026
Retirement Benefits [Abstract]  
PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS
Components of net periodic benefit (credit) cost included in net income (loss) are as follows:
Pension BenefitsOther Benefits
Three Months Ended June 30,Six Months Ended June 30,Three Months Ended June 30,Six Months Ended June 30,
(in thousands)20262025202620252026202520262025
Interest cost$8,861 $10,012 $17,724 $20,024 $52 $63 $104 $126 
Expected return on plan assets(9,340)(9,445)(18,684)(18,887)— — — — 
Amortization of prior service cost— 75 — 150 — 71 — 142 
Benefit plans, net(479)642 (960)1,287 52 134 104 268 
Service cost (1)
— 100 — 200 5 5 10 10 
Net periodic benefit (credit) cost$(479)$742 $(960)$1,487 $57 $139 $114 $278 
(1)    Service cost related to a small group of active participants is presented within Cost of operations in the Condensed Consolidated Statements of Operations.

There were no MTM adjustments for the pension and other postretirement benefit plans during the three and six months ended June 30, 2026 and 2025.

We made contributions to the pension and other postretirement benefit plans totaling $0.3 million and $6.8 million during the three and six months ended June 30, 2026 as compared to $4.0 million and $7.7 million during the three and six months ended June 30, 2025 respectively.