Revenue - Earned Premium (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Underwriting income:
Premiums assumed	$ 474,293	$ 353,925
Reinsurance premiums ceded	(10,749)	(7,920)
Net premiums assumed	463,544	346,005
Change in unearned premiums	(60,263)	(50,491)
Change in deferred reinsurance premiums	(220)	310
Net premiums earned	$ 403,061	$ 295,824

(Increase) Decrease in Deferred Reinsurance Premiums, Net

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Amount of written premiums assumed from other entities.

+ References

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Amount of written premiums ceded to other entities.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of decrease (increase) in unearned premiums.

+ References

No definition available.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of premiums written.

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