Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2025

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by reporting segment for the year ended December 31, 2025 were as follows:

($ in millions)	Property & Casualty		Life & Retirement		Supplemental & Group Benefits		Total
Balance as of January 1, 2023
Goodwill	$	9.5	$	48.0	$	32.4	$	89.9
Accumulated impairment losses	—		(35.6)		—		(35.6)
Total goodwill, net	9.5		12.4		32.4		54.3
Acquisitions	—		—		—		—
Impairments	—		—		—		—
Balance as of December 31, 2023
Goodwill	9.5		48.0		32.4		89.9
Accumulated impairment losses	—		(35.6)		—		(35.6)
Total goodwill, net	9.5		12.4		32.4		54.3
Acquisitions	—		—		—		—
Impairments	—		—		—		—
Balance as of December 31, 2024
Goodwill	9.5		48.0		32.4		89.9
Accumulated impairment losses	—		(35.6)		—		(35.6)
Total goodwill, net	9.5		12.4		32.4		54.3
Acquisitions	—		—		—		—
Impairments	—		—		—		—
Balance as of December 31, 2025
Goodwill	9.5		48.0		32.4		89.9
Accumulated impairment losses	—		(35.6)		—		(35.6)
Total goodwill, net	$	9.5	$	12.4	$	32.4	$	54.3

Schedule of Finite-Lived Intangible Assets

As of December 31, 2025 the outstanding amounts of definite-lived intangible assets subject to amortization were as follows:

($ in millions)	Weighted Average
	Useful Life (in Years)
At inception:
Value of business acquired	28	$	100.1
Value of distribution acquired	17	54.0
Value of agency relationships	14	17.0
Value of customer relationships	10	59.9
Total	20	231.0
Accumulated amortization and impairments:
Value of business acquired		(45.7)
Value of distribution acquired		(23.3)
Value of agency relationships		(12.4)
Value of customer relationships		(21.5)
Total		(102.9)
Net intangible assets subject to amortization:		$	128.1

Schedule of Future Amortization Expense

Estimated future amortization of the Company's definite-lived intangible assets were as follows:

($ in millions)
Year Ending December 31,
2026	$	14.2
2027	14.1
2028	14.1
2029	13.9
2030	14.0
Thereafter	57.8
Total	$	128.1

Schedule of Indefinite-Lived Intangible Assets

Indefinite-lived intangible assets (not subject to amortization) as of December 31, 2025 were as follows:

($ in millions)	Trade Names		State Licenses		Total
Balance as of January 1, 2023	$	7.6	$	5.8	$	13.4
Impairments	—		—		—
Acquisitions	—		—		—
Balance as of December 31, 2023	7.6		5.8		13.4
Impairments	—		—		—
Acquisitions	—		—		—
Balance as of December 31, 2024	7.6		5.8		13.4
Impairments	—		—		—
Acquisitions	—		—		—
Balance as of December 31, 2025	$	7.6	$	5.8	$	13.4