Leases (Tables)

3 Months Ended

Mar. 31, 2025

Leases [Abstract]

Lease, Cost

The following table presents operating lease right-of-use assets and lease liabilities.

(Dollars in Millions)	Mar 31, 2025		Dec 31, 2024
Operating Lease Right-of-Use Assets	$	38.2	$	33.9
Operating Lease Liabilities	54.7		51.6

Lease expenses are included in Insurance and Other Expenses in the Condensed Consolidated Statements of Income. Additional information regarding the Company’s operating leases is presented below.

	Three Months Ended
(Dollars in Millions)	Mar 31, 2025		Mar 31, 2024
Lease Cost:
Operating Lease Cost	$	4.0	$	3.9
Variable Lease Cost	1.1		1.1
Short-Term Lease Cost1	0.1		—
Total Lease Cost	$	5.2	$	5.0
1 Leases with an initial term of twelve months or less are not recorded on the Condensed Consolidated Balance Sheets.

Significant judgments and assumptions for determining lease asset and liability at March 31, 2025 and 2024 are presented below.

	Three Months Ended
	Mar 31, 2025		Mar 31, 2024
Weighted-average Remaining Lease Term - Operating Leases	5.4 years		5.5 years
Weighted-average Discount Rate - Operating Leases	4.6	%	4.3	%

Lessee, Operating Lease, Liability, to be Paid, Maturity

Future minimum lease payments under operating leases at March 31, 2025 are presented below.

(Dollars in Millions)	March 31, 2025
Remainder of 2025	$	13.4
2026	11.9
2027	10.5
2028	7.5
2029	5.6
2030 and Thereafter	13.0
Total Future Payments	$	61.9
Less: Discount	7.2
Present Value of Minimum Lease Payments	$	54.7