Insurance Operations (Tables)

12 Months Ended

Dec. 31, 2023

Insurance [Abstract]

Summary of Reconciliations of Direct to Net premiums on Written and Earned Basis Related to Wholly Owned Underwriting Enterprise Subsidiary

Reconciliations of direct to net premiums, on a written and earned basis, for 2023, 2022 and 2021 related to the wholly-owned underwriting enterprise subsidiary discussed above are as follows (in millions):

	2023						2022						2021
	Written			Earned			Written			Earned			Written			Earned
Direct	$	19.8		$	24.8		$	24.4		$	28.7		$	30.9		$	35.9
Assumed		—			0.4			0.4			0.2			0.2			0.2
Ceded		(19.8	)		(25.2	)		(24.8	)		(28.9	)		(31.1	)		(36.1	)
Net	$	—		$	—		$	—		$	—		$	—		$	—