Income Taxes - Components of Deferred Tax Liability (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Deferred tax assets:
Unearned premiums	$ 9,184	$ 15,805
Unearned commission	9,019	9,459
Net operating loss	1,486	1,222
Tax-related discount on loss reserve	4,216	3,872
Stock-based compensation	224	84
Accrued expenses	1,251	1,182
Leases	822	792
Unrealized losses	13,106	1,913
Federal net operating loss carryforward	10,661	0
Other	450	472
Total deferred tax asset	50,419	34,801
Deferred tax liabilities:
Deferred acquisition costs	23,284	21,977
Prepaid expenses	144	177
Property and equipment	1,313	1,504
Note discount	85	187
Basis in purchased investments	32	34
Basis in purchased intangibles	11,811	14,550
Internal revenue code 481(a)-Accounting method change	2,208	4,416
Other	1,780	1,382
Total deferred tax liabilities	40,657	44,227
Net deferred tax asset (liability)	$ (9,762)	$ (9,426)