Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2026

Fair Value Disclosures [Abstract]

Schedule of Fair Value Hierarchy for Financial Assets and Liabilities

The following tables present the Company’s fair value hierarchy for financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2026 and December 31, 2025 ($ in millions):

	June 30, 2026
	Level 1		Level 2		Level 3		Total
Financial Assets:
Corporate debt securities	$	—	$	501.4	$	—	$	501.4
U.S. Government obligations	—		156.0		—		156.0
Asset-backed securities and collateralized loan obligations	—		82.2		—		82.2
Non-U.S. government obligations	—		28.9		—		28.9
Fixed maturities	$	—	$	768.5	$	—	$	768.5
Short term investments	—		9.2		—		9.2
Total	$	—	$	777.7	$	—	$	777.7

	December 31, 2025
	Level 1		Level 2		Level 3		Total
Financial Assets:
Corporate debt securities	$	—	$	501.2	$	—	$	501.2
U.S. Government obligations	—		140.1		—		140.1
Asset-backed securities	—		45.5		—		45.5
Non-U.S. government obligations	—		22.0		—		22.0
Fixed maturities	$	—	$	708.8	$	—	$	708.8
Short term investments	—		14.1		—		14.1
Total	$	—	$	722.9	$	—	$	722.9
Financial Liabilities:
Warrant Liability (1)	$	—	$	—	$	—	$	—

(1) Fair value of Public and Private warrant liability amounted to less than $0.1 million as of December 31, 2025. These warrants expired on February 9, 2026.