v3.26.1
Retirement and Other Employee Benefits (Tables)
 6 Months Ended
Jun. 30, 2026
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]  
Schedule of Net Periodic Benefit Cost
The following table presents the components of net periodic benefit cost for the Pension Benefits and Plan Benefits for the three and six months ended June 30, 2026 and 2025: 
Qualified Pension Benefits
Unfunded Non-qualified Pension Benefits
Plan Benefits
For the Three Months Ended June 30,
For the Three Months Ended June 30,
For the Three Months Ended June 30,
2026
2025
2026
2025
2026
2025
Interest cost
$
5.6 
$
6.2 
$
0.5 
$
0.7 
$
— 
$
— 
Expected return on plan assets
(9.0)
(9.6)
— 
— 
— 
— 
Amortization of net loss
0.4 
— 
0.3 
0.3 
— 
— 
Net periodic benefit cost
$
(3.0)
$
(3.4)
$
0.8 
$
1.0 
$
— 
$
— 
Qualified Pension Benefits
Unfunded Non-qualified Pension Benefits
Plan Benefits
For the Six Months Ended June 30,
For the Six Months Ended June 30,
For the Six Months Ended June 30,
2026
2025
2026
2025
2026
2025
Interest cost
$
11.2 
$
12.5 
$
1.0 
$
1.3 
$
— 
$
— 
Expected return on plan assets
(18.0)
(19.3)
— 
— 
— 
— 
Amortization of net loss
0.8 
— 
0.6 
0.6 
— 
— 
Settlement loss
— 
— 
— 
— 
— 
2.5 
Net periodic benefit cost
$
(6.0)
$
(6.8)
$
1.6 
$
1.9 
$
— 
$
2.5