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Underwriting Information - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($) item	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Underwriting Information
Gross written premiums	$ 881,868	$ 535,175	$ 354,360
% of GWP	100.00%	100.00%	100.00%
Number of program administrators | item	2
Sales Revenue | Product Concentration Risk
Underwriting Information
Gross written premiums	$ 417,500	$ 255,800	$ 191,300
% of GWP	47.30%	48.20%	54.00%

X

- Definition

Represents the number of program administrators.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of gross written premiums.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Amount of direct and assumed premiums written.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 605
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547

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- Details

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