Variable Interest Entity - Summary of Unaudited Financial Information and Unaudited Financial Position (Details) - USD ($) $ in Thousands		Jun. 30, 2024		Dec. 31, 2023		Jun. 30, 2023
Assets [Abstract]
Cash and cash equivalents	[1]	$ 445,829		$ 536,478
Income taxes receivable	[1]	2,820		0
Premiums receivable	[1]	58,114		38,037
Assumed premiums receivable	[1]	7,562		19,954
Prepaid reinsurance premium	[1]	123,955		86,232
Deferred policy acquisition costs	[1]	52,564		42,910
Other Assets	[1]	65,484		50,365
Total assets		1,911,381		1,811,316
Liabilities [Abstract]
Losses and loss adjustment expenses		571,646	[1]	585,073	[1]	$ 748,955
Unearned premiums	[1]	542,839		501,157
Advance premiums	[1]	24,119		15,895
Ceded reinsurance premiums payable	[1]	7,950		8,921
Accrued expenses	[1]	27,860		19,722
Deferred income taxes, net	[1]	4,328		0
Other liabilities	[1]	35,426		35,623
Total liabilities		1,457,347		1,387,991
CORE [Member]
Assets [Abstract]
Cash and cash equivalents		48,109		24,635
Restricted cash		302		300
Income taxes receivable		2,820		0
Premiums receivable		3,792		0
Assumed premiums receivable		11,014		0
Prepaid reinsurance premium		6,512		0
Deferred policy acquisition costs		1,426		0
Other Assets		504		65
Total assets		74,479		25,000
Liabilities [Abstract]
Losses and loss adjustment expenses		1,111		0
Unearned premiums		39,093		0
Advance premiums		265		0
Ceded reinsurance premiums payable		796		0
Accrued expenses		1,128		0
Deferred income taxes, net		1,440		0
Other liabilities		165		0
Total liabilities		$ 43,998		$ 0

[1] See Note 13 for details of balances associated with consolidated variable interest entity.