Reinsurance - Non-Insurance (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Effects of Reinsurance [Line Items]
Non-Insurance revenue, gross and net	$ 2,380,135	$ 667,639	$ 0
Claims incurred, gross and net	3,453,952	1,551,178	$ 590,082
Non-Insurance
Effects of Reinsurance [Line Items]
Non-Insurance revenue, gross and net	2,380,135	667,639
Claims incurred, gross and net	2,460,879	705,407
Reinsurance recoverable, gross and net	$ 52,955	$ 12,170

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- Definition

Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
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- Definition

Amount before valuation allowance recoverable under reinsurance contracts. Examples include, but are not limited to, settled and unsettled claims, incurred but not reported losses, loss adjustment expense, premium paid, policy benefits and policy reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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Amount of revenue that is not accounted for under Topic 606.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
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