Acquisitions - Summary of the Consideration Paid (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 14, 2020	Oct. 02, 2020	Apr. 01, 2020
Five Points Capital
Business Acquisition [Line Items]
Cash				$ 46,751
Preferred stock				20,100
Total purchase consideration				$ 66,851
TrueBridge Capital
Business Acquisition [Line Items]
Cash			$ 94,216
Contingent consideration			572
Preferred stock			94,350
Total purchase consideration			$ 189,138
Enhanced
Business Acquisition [Line Items]
Cash		$ 82,596
Estimated post-closing working capital adjustment		1,519
Preferred stock		26,904
Total purchase consideration		$ 111,019
Bonaccord
Business Acquisition [Line Items]
Cash	$ 38,927
Contingent consideration	17,435
Total purchase consideration	$ 56,362