Leases

12 Months Ended

Dec. 31, 2024

Leases [Abstract]

Lessee, Operating Leases

We lease certain buildings and equipment under various noncancellable operating lease agreements. In addition, we have sub-lease agreements on a limited number of our building lease agreements. We have the option to renew the majority of our building leases and equipment leases at the end of the lease term at the fair rental value at the time of renewal.

We do not have any lease agreements or sub-lease agreements that contain variable lease payments. In addition, we do not have lease agreements or sub-lease agreements that contain residual value guarantees or impose any financial restrictions or covenants with the lessors.

Operating lease information is as follows:

	Year Ended December 31
	2024			2023			2022
	(in millions of dollars)
Lease Cost
Operating Lease Cost	$	17.3		$	16.4		$	19.6
Sublease Income	(1.7)			(1.5)			(1.1)
Total Lease Cost	$	15.6		$	14.9		$	18.5
Other Information
Cash Paid for Amounts Included in the Measurement of Lease Liabilities	$	20.7		$	20.3		$	23.1
Weighted-Average Remaining Lease Term	5 years			5 years			6 years
Weighted-Average Discount Rate	5.19		%	4.85		%	4.32		%

As of December 31, 2024, aggregate undiscounted minimum lease payments and the reconciliation to our lease liability are as follows (in millions of dollars):

2025	$	17.4
2026	15.9
2027	13.6
2028	12.4
2029	11.1
2030 and Thereafter	11.1
Total	81.5
Less Imputed Interest	12.1
Lease Liability	$	69.4

The right-of-use asset was $45.1 million and $35.8 million at December 31, 2024 and 2023, respectively.