Leases (Tables)

12 Months Ended

Dec. 31, 2025

Leases [Abstract]

Lease, Cost

Operating lease information is as follows:

	Year Ended December 31
	2025			2024			2023
	(in millions of dollars)
Lease Cost
Operating Lease Cost	$	17.8		$	17.3		$	16.4
Sublease Income	(2.3)			(1.7)			(1.5)
Total Lease Cost	$	15.5		$	15.6		$	14.9
Other Information
Cash Paid for Amounts Included in the Measurement of Lease Liabilities	$	19.9		$	20.7		$	20.3
Weighted-Average Remaining Lease Term	5 years			5 years			5 years
Weighted-Average Discount Rate	5.14		%	5.19		%	4.85		%

Lessee, Operating Lease, Liability, Maturity

As of December 31, 2025, aggregate undiscounted minimum lease payments and the reconciliation to our lease liability are as follows (in millions of dollars):

2026	$	22.4
2027	19.6
2028	17.6
2029	15.3
2030	6.3
2031 and Thereafter	9.6
Total	90.8
Less Imputed Interest	11.9
Lease Liability	$	78.9