Segment Information (Tables)

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Revenue and Income (Loss) Before Income Taxes for Each Segment

Revenue and income (loss) before income taxes for each segment were as follows:

	For the Three Months Ended March 31,
(in millions)	2023		2022
Revenue:
Earned premiums
U.S. Operations	$	325.6	$	336.4
International Operations	64.3		144.2
Total earned premiums	389.9		480.6
Net investment income
U.S. Operations	24.4		25.6
International Operations	4.6		11.4
Run-off Lines	0.7		0.7
Total net investment income	29.7		37.7
Net investment and other gains (losses)	(17.9)		(34.5)
Total revenue	$	401.7	$	483.8

	For the Three Months Ended March 31,
(in millions)	2023		2022
Income (loss) before income taxes
U.S. Operations	$	(4.6)	$	43.9
International Operations	2.4		22.7
Run-off Lines	(0.7)		(1.0)
Total segment income (loss) before income taxes	(2.9)		65.6
Corporate and Other	(18.8)		(16.2)
Net investment and other gains (losses)	(17.9)		(34.5)
Foreign currency exchange gains (losses)	(2.7)		(2.9)
Total income (loss) before income taxes	$	(42.3)	$	12.0

Schedule of Earned Premiums by Geographic Location

The table below presents earned premiums by geographic location for the three months ended March 31, 2023 and 2022. For this disclosure, we determine geographic location by the country of domicile of our subsidiaries that underwrite the business and not by the location of insureds or reinsureds from whom the business was generated.

	For the Three Months Ended March 31,
(in millions)	2023		2022
United States	$	325.6	$	336.4
United Kingdom	48.3		127.1
Bermuda	13.2		6.4
Malta	—		2.3
All other jurisdictions	2.8		8.4
Total earned premiums	$	389.9	$	480.6

Identifiable Assets

The following table presents identifiable assets:

(in millions)	March 31, 2023		December 31, 2022
U.S. Operations	$	6,024.1	$	5,815.0
International Operations	1,786.6		3,791.6
Run-off Lines	266.4		284.4
Corporate and Other	127.0		143.4
Total assets	$	8,204.1	$	10,034.4