Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 57,687	$ 41,681	$ 151,987	$ 111,082
Renewal Commissions
Disaggregation of Revenue [Line Items]
Revenues	16,485	10,969	41,233	29,036
New Business Commissions
Disaggregation of Revenue [Line Items]
Revenues	6,215	6,013	18,312	16,573
Agency Fees
Disaggregation of Revenue [Line Items]
Revenues	2,740	3,050	8,491	8,579
Contingent Commissions
Disaggregation of Revenue [Line Items]
Revenues	1,962	2,388	5,640	6,819
Renewal Royalty Fees
Disaggregation of Revenue [Line Items]
Revenues	21,574	13,206	54,446	33,622
New Business Royalty Fees
Disaggregation of Revenue [Line Items]
Revenues	4,866	4,003	13,979	10,840
Initial Franchise Fees
Disaggregation of Revenue [Line Items]
Revenues	3,056	1,680	7,943	4,570
Other Franchise Revenues
Disaggregation of Revenue [Line Items]
Revenues	426	71	931	202
Interest income
Disaggregation of Revenue [Line Items]
Revenues	363	301	1,012	841
Transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenues	25,440	20,032	68,036	54,188
Transferred over time
Disaggregation of Revenue [Line Items]
Revenues	$ 32,247	$ 21,649	$ 83,951	$ 56,894