Other Assets (Tables)

12 Months Ended

Dec. 31, 2021

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other assets

Other assets consists of the following ($ in millions):

	December 31,
	2021		2020
Right-of-use assets (Note 22)	$	21.9	$	—
Ceding commission receivable	14.5		5.4
Prepaid expenses	10.6		7.5
Investment income due and accrued	3.4		0.9
Other	2.8		0.7
Total other assets	$	53.2	14.5