Amortization of Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Finite-Lived Intangible Assets Amortization Expense

The following table presents the amortization expense on definite life intangible assets incurred by the Company for the three and six months ended June 30, 2025 and 2024:

	Three Months Ended				Six Months Ended
(Dollars in Millions)	Jun 30, 2025		Jun 30, 2024		Jun 30, 2025		Jun 30, 2024
Specialty Property & Casualty Insurance	$	4.6	$	3.9	$	8.8	$	8.6
Life Insurance	1.7		1.4		3.3		2.6
Total Segment Amortization Expense	6.3		5.3		12.1		11.2
Corporate and Other	4.9		5.6		9.8		11.5
Non-Core Operations	0.7		0.4		1.3		0.7
Total Amortization Expense	$	11.9	$	11.3	$	23.2	$	23.4