Fair Value of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2025

Fair Value Disclosures [Abstract]

Schedule of the fair value and carrying value of financial instruments

The following table presents the fair value and carrying value of these financial instruments as of September 30, 2025 and December 31, 2024:

	September 30, 2025				December 31, 2024
Millions	Fair Value		Carrying Value		Fair Value		Carrying Value
Ark 2021 Subordinated Notes	$	179.6	$	159.7	$	173.9	$	154.5
HG Global Senior Notes	$	154.0	$	147.7	$	157.2	$	147.4
Kudu Credit Facility	$	289.4	$	274.3	$	253.3	$	238.6
Bamboo Credit Facility	$	106.6	$	104.6	$	—	$	—
Distinguished Credit Facility	$	139.6	$	138.1	$	—	$	—
Distinguished other debt	$	10.6	$	10.6	$	—	$	—
Other Operations debt	$	36.2	$	35.4	$	23.1	$	22.0