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Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Related Party Transaction [Line Items]
Commission revenue	$ 488,789	$ 376,249	$ 1,017,650	$ 786,780
Cash proceeds received			567,889
Right-of-use assets	81,552		81,552		$ 61,976
Related Party
Related Party Transaction [Line Items]
Producer commissions received		100		200
Related Party | Emerald Bay
Related Party Transaction [Line Items]
Investment in related party	2,300		2,300		2,300
Related Party | The Estate of John Baldwin | Book of Business Purchase
Related Party Transaction [Line Items]
Cash proceeds received			1,100
Related Party | The Villages
Related Party Transaction [Line Items]
Rent expense	200	200	400	400
Right-of-use assets	1,900		1,900		1,700
Operating lease liabilities	1,900		1,900		1,800
Related Party | The Villages | Broker Services
Related Party Transaction [Line Items]
Commission revenue	1,000	200	1,800	2,000
Related Party | Other Parties, Excluding Holding Company of the Villages, Inc.
Related Party Transaction [Line Items]
Rent expense	800	$ 900	1,700	$ 1,700
Right-of-use assets	9,000		9,000		7,600
Operating lease liabilities	$ 9,400		$ 9,400		$ 8,800

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