Investments - Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Schedule of Investments [Line Items]
Investment income	$ 7,821	$ 8,083	$ 14,571	$ 18,268
Investment expenses	(154)	(805)	(337)	(1,149)
Net investment income	7,667	7,278	14,234	17,119
Fixed maturities
Schedule of Investments [Line Items]
Investment income	2,161	4,395	4,815	11,086
Income on funds withheld
Schedule of Investments [Line Items]
Investment income	3,513	2,715	6,137	5,220
Interest income from loan to related party
Schedule of Investments [Line Items]
Investment income	1,158	866	2,037	1,726
Cash and cash equivalents and other investments
Schedule of Investments [Line Items]
Investment income	$ 989	$ 107	$ 1,582	$ 236

Amount before accretion (amortization) of purchase discount (premium) of interest income and dividend income on nonoperating securities.

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.9)
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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-Section S99
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-Subparagraph (SX 210.7-04.2)
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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(a),(b))
-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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-Name Accounting Standards Codification
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-URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227

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