Acquisitions - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 13, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Business Acquisition [Line Items]
Aggregate membership units				3,307,974
Revolving Credit Facility
Business Acquisition [Line Items]
Revolver facility				$ 60,500		$ 80,900
Westech Investment Advisors LLC
Business Acquisition [Line Items]
Business acquisition effective date	Oct. 13, 2022
Aggregate membership units	3,916,666
Expenses related to business acquisition				3,200
Purchase consideration	$ 145,995
Payments to acquire business	105,262
Business acquisition, goodwill, expected tax deductible amount	87,300
Net identifiable assets acquired	$ 58,647
Westech Investment Advisors LLC | Professional Fees
Business Acquisition [Line Items]
Expenses related to business acquisition		$ 0	$ 1,400	$ 0	$ 1,500