Segment Information (Tables)

12 Months Ended

Dec. 31, 2022

Segment Reporting [Abstract]

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

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

	For the Years Ended December 31,
(in millions)	2022		2021		2020
Revenue:
Net earned premiums
U.S. Operations	$	1,209.0	$	1,283.7	$	1,207.6
International Operations	530.5		625.8		572.5
Run-off Lines	0.9		0.6		0.4
Total net earned premiums	1,740.4		1,910.1		1,780.5
Net investment income
U.S. Operations	88.4		119.4		80.3
International Operations	39.1		50.6		26.7
Run-off Lines	2.3		3.6		4.0
Corporate and Other	—		14.0		1.7
Total net investment income	129.8		187.6		112.7
Net investment and other gains (losses)	(115.3)		32.6		(3.6)
Total revenue	$	1,754.9	$	2,130.3	$	1,889.6

	For the Years Ended December 31,
(in millions)	2022		2021		2020
Income (loss) before income taxes
U.S. Operations	$	(22.9)	$	61.1	$	113.1
International Operations	63.8		64.1		(75.3)
Run-off Lines	(1.8)		(41.5)		(9.6)
Total segment income before income taxes	39.1		83.7		28.2
Corporate and Other	(32.0)		(22.5)		(34.5)
Net investment and other gains (losses)	(115.3)		32.6		(3.6)
Foreign currency exchange gains (losses)	5.0		(1.6)		(15.4)
Impairment of goodwill and intangible assets	(28.5)		(43.2)		—
Non-operating expense	(51.5)		(43.7)		(21.1)
Total income (loss) before income taxes	$	(183.2)	$	5.3	$	(46.4)

Schedule of Earned Premiums by Geographic Location

The table below presents net earned premiums by geographic location for the years ended December 31, 2022, 2021 and 2020. 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 Years Ended December 31,
(in millions)	2022		2021		2020
United States	$	1,209.9	$	1,277.0	$	1,205.0
United Kingdom	480.2		475.3		361.1
Bermuda	38.0		54.8		96.5
Malta	3.9		35.4		59.5
All other jurisdictions	8.4		67.6		58.4
Total net earned premiums	$	1,740.4	$	1,910.1	$	1,780.5

Identifiable Assets

The following table represents identifiable assets:

	December 31,
(in millions)	2022		2021
U.S. Operations	$	5,815.0	$	5,800.1
International Operations (1)	3,791.6		3,932.3
Run-off Lines	284.4		314.7
Corporate and Other	143.4		270.7
Total	$	10,034.4	$	10,317.8

(1) $2,066.2 million of International assets were reclassified to assets held-for-sale in 2022. See Note 2, “Recent Acquisitions, Disposals & Other Transactions”.

Schedule of Goodwill and Intangible Assets Net of Accumulated Amortization

The following table represents goodwill and intangible assets, net of accumulated amortization, as of December 31, 2022 and 2021:

	Goodwill				Intangible Assets, Net of Accumulated Amortization
(in millions)	2022		2021		2022		2021
U.S. Operations	$	118.6	$	118.6	$	—	$	—
International Operations (1)	—		28.7		—		17.3
Total	$	118.6	$	147.3	$	—	$	17.3

(1) $17.5 million of International goodwill was reclassified to assets held-for-sale in 2022. See Note 2, “Recent Acquisitions, Disposals & Other Transactions”.