v3.26.1
Retirement Plans and Postretirement Benefits
 3 Months Ended
Mar. 31, 2026
Postemployment Benefits [Abstract]  
Pension and Other Postretirement Employee Benefit Plans RETIREMENT PLANS AND POSTRETIREMENT BENEFITS
The following table details the components of net periodic cost of our company-sponsored pension and other postretirement employee benefit plans for the periods presented:
 Quarter Ended March 31,
Pension Benefit Plans20262025
Service cost$0.6 $0.8 
Interest cost2.8 3.0 
Expected return on plan assets(3.0)(3.3)
Amortization of actuarial loss0.9 0.2 
Net periodic cost $1.3 $0.6 

 Quarter Ended March 31,
Other Postretirement Employee Benefit Plans20262025
Service cost$0.1 $— 
Interest cost0.6 0.6 
Amortization of actuarial gain(0.1)(0.1)
Net periodic cost$0.5 $0.5 

We record the service component of net periodic cost as part of "Cost of sales" and "Selling, general, and administrative expenses," while the non-service component of net periodic cost is recorded in "Other non-operating expense" on our Consolidated Statements of Operations. For the quarter ended March 31, 2026, we recorded $0.6 million to "Cost of sales" and $0.1 million to "Selling, general, and administrative expenses." For the quarter ended March 31, 2025, we recorded $0.7 million to "Cost of sales" and $0.1 million to "Selling, general, and administrative expenses."