Reinsurance (Tables)

12 Months Ended

Dec. 31, 2022

Insurance [Abstract]

Schedule of Reinsurance Premiums

Premiums were as follows:

	For the Years Ended December 31,
(in millions)	2022			2021			2020
Direct written premiums	$	2,682.8		$	2,990.6		$	2,676.1
Reinsurance ceded to other companies	(1,106.7)			(1,203.9)			(1,423.2)
Reinsurance assumed from other companies	165.4			190.6			557.2
Net written premiums	$	1,741.5		$	1,977.3		$	1,810.1
Direct earned premiums	$	2,757.8		$	2,917.7		$	2,660.6
Reinsurance ceded to other companies	(1,205.3)			(1,272.7)			(1,388.6)
Reinsurance assumed from other companies	187.9			265.1			508.5
Net earned premiums	$	1,740.4		$	1,910.1		$	1,780.5
Percentage of reinsurance assumed to net earned premiums	10.8		%	13.9		%	28.6		%