Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Goodwill balances by business segment at December 31, 2021 and 2020 were:

DOLLARS IN MILLIONS	2021		2020
Specialty Property & Casualty Insurance	$	1,043.0	$	845.0
Preferred Property & Casualty Insurance	49.6		49.6
Life & Health Insurance	219.4		219.4
Total	$	1,312.0	$	1,114.0

Schedule of Definite-Life Intangible Assets

at December 31, 2021 and 2020 were:

	2021						2020
(Dollars in Millions)	Gross Carrying Amount		Accumulated Amortization		Net Amount		Gross Carrying Amount		Accumulated Amortization		Net Amount
Definite Life Intangibles:
Value of Business Acquired	$	237.5	$	218.5	$	19.0	$	194.5	$	174.2	$	20.3
Customer Relationships	43.8		38.1		5.7		39.0		35.6		3.4
Agent Relationships	81.6		23.6		58.0		74.4		16.8		57.6
Trade Names	1.8		0.9		0.9		—		—		—
Internal-Use Software	341.7		132.4		209.3		299.6		108.6		191.0
Total Definite Life Intangible Assets	706.4		413.5		292.9		607.5		335.2		272.3
Indefinite Life Intangible Assets:
Trade Names	5.2		—		5.2		5.2		—		5.2
Insurance Licenses	45.1		—		45.1		42.6		—		42.6
Total Indefinite Life Intangible Assets	50.3		—		50.3		47.8		—		47.8
Total Intangible Assets	$	756.7	$	413.5	$	343.2	$	655.3	$	335.2	$	320.1

Schedule of Indefinite-Life Intangible Assets

at December 31, 2021 and 2020 were:

	2021						2020
(Dollars in Millions)	Gross Carrying Amount		Accumulated Amortization		Net Amount		Gross Carrying Amount		Accumulated Amortization		Net Amount
Definite Life Intangibles:
Value of Business Acquired	$	237.5	$	218.5	$	19.0	$	194.5	$	174.2	$	20.3
Customer Relationships	43.8		38.1		5.7		39.0		35.6		3.4
Agent Relationships	81.6		23.6		58.0		74.4		16.8		57.6
Trade Names	1.8		0.9		0.9		—		—		—
Internal-Use Software	341.7		132.4		209.3		299.6		108.6		191.0
Total Definite Life Intangible Assets	706.4		413.5		292.9		607.5		335.2		272.3
Indefinite Life Intangible Assets:
Trade Names	5.2		—		5.2		5.2		—		5.2
Insurance Licenses	45.1		—		45.1		42.6		—		42.6
Total Indefinite Life Intangible Assets	50.3		—		50.3		47.8		—		47.8
Total Intangible Assets	$	756.7	$	413.5	$	343.2	$	655.3	$	335.2	$	320.1

Schedule of Definite-Life Intangible Assets, Future Amortization Expense

The amount of amortization expense expected to be recorded in the next five years for definite life intangible assets is as follows:

DOLLARS IN MILLIONS	2022		2023		2024		2025		2026
Definite Life Intangible Assets:
Value of Business Acquired	$	3.6	$	2.0	$	1.9	$	1.8	$	1.7
Customer Relationships	3.0		1.1		0.4		0.4		0.3
Agent Relationships	7.3		7.3		5.5		4.9		4.9
Trade Names	0.9		—		—		—		—
Internal-Use Software	33.3		30.4		23.9		18.9		16.2
Total	$	48.1	$	40.8	$	31.7	$	26.0	$	23.1