XML 29 R19.htm IDEA: XBRL DOCUMENT v3.25.2
Pension Benefit Plans
6 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Pension Benefit Plans
8. Pension Benefit Plans:

The components of net periodic benefit cost for pension benefits were as follows (in millions):
For the Three Months Ended June 30,For the Six Months Ended June 30,
2025202420252024
Service cost$0.3 $0.4 $0.6 $0.8 
Interest cost2.0 2.2 4.1 4.3 
Expected return on plan assets(1.8)(1.9)(3.6)(3.8)
Amortization of prior service cost(0.1)— (0.1)— 
Recognized actuarial loss0.5 0.2 0.9 0.4 
Settlements and curtailments0.1 0.3 0.2 0.3 
Net periodic benefit cost$1.0 $1.2 $2.1 $2.0