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Reserve for Losses and Loss Adjustment Expenses - Summary of Incurred Losses and Allocated Loss Adjustment Expense (Details) $ in Thousands	Dec. 31, 2022 USD ($) loan	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	$ 266,213
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	64,367
All outstanding liabilities before 2013, net of reinsurance	0
Reserve for losses and LAE, net of reinsurance	201,846	$ 381,505	$ 355,880	$ 69,291
Reinsurance recoverables	14,618	25,940	19,061	71
Total gross reserve for losses and LAE	216,464	407,445	374,941	69,362
2013 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	2,058	2,058	2,058	2,058	$ 2,058	$ 2,060	$ 1,997	$ 2,008	$ 2,461	$ 2,986
Total of IBNR plus Expected Development on Reported Defaults	$ 0
Cumulative Number of Reported Defaults | loan	51
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 2,058	2,058	2,058	2,058	2,058	1,880	1,775	1,501	928	$ 239
2014 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	2,870	2,869	2,882	2,897	2,930	2,984	3,323	4,312	6,877
Total of IBNR plus Expected Development on Reported Defaults	$ 1
Cumulative Number of Reported Defaults | loan	92
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 2,856	2,856	2,867	2,882	2,897	2,787	2,463	1,587	$ 138
2015 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	8,434	8,410	8,323	8,461	8,439	8,893	9,625	14,956
Total of IBNR plus Expected Development on Reported Defaults	$ 7
Cumulative Number of Reported Defaults | loan	213
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 8,335	8,226	8,055	7,961	7,535	6,960	3,610	$ 544
2016 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	8,861	8,614	8,972	9,219	9,455	11,890	21,889
Total of IBNR plus Expected Development on Reported Defaults	$ 27
Cumulative Number of Reported Defaults | loan	244
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 8,468	8,205	8,270	7,864	6,947	4,896	$ 927
2017 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	11,550	11,249	11,488	12,202	16,261	38,178
Total of IBNR plus Expected Development on Reported Defaults	$ 64
Cumulative Number of Reported Defaults | loan	327
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 10,620	10,536	10,257	9,156	5,370	$ 633
2018 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	17,249	17,402	19,536	23,168	36,438
Total of IBNR plus Expected Development on Reported Defaults	$ 188
Cumulative Number of Reported Defaults | loan	492
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 14,536	13,927	13,406	8,067	$ 1,310
2019 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	24,223	23,649	39,085	50,562
Total of IBNR plus Expected Development on Reported Defaults	$ 823
Cumulative Number of Reported Defaults | loan	693
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 12,392	10,717	8,049	$ 1,288
2020 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	53,045	269,410	317,516
Total of IBNR plus Expected Development on Reported Defaults	$ 3,550
Cumulative Number of Reported Defaults | loan	1,156
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 4,022	2,499	$ 1,018
2021 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	38,551	97,256
Total of IBNR plus Expected Development on Reported Defaults	$ 2,866
Cumulative Number of Reported Defaults | loan	1,349
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 856	$ 388
2022 | Property Insurance Product Line
Liability for Claims and Claims Adjustment Expense [Line Items]
Incurred Loss and Allocated LAE, For the Years Ended December 31,	99,372
Total of IBNR plus Expected Development on Reported Defaults	$ 7,430
Cumulative Number of Reported Defaults | loan	10,768
Cumulative Paid Losses and Allocated LAE For the Years Ended December 31,	$ 224

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The amount needed to reflect the estimated ultimate cost of settling claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date.

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Amount, after valuation allowance, recoverable under reinsurance contracts for losses reported to the ceding insurer but not yet paid and amounts expected for incurred losses and settlement expenses, which have not yet been reported to the ceding insurer.

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