Acquisitions (Details) - USD ($) $ in Thousands	Sep. 10, 2020	Aug. 25, 2020	Mar. 31, 2021	Dec. 31, 2020
Purchase Price Allocation
Goodwill			$ 176,008	$ 175,835
Gadberry
Business Acquisition [Line Items]
Cash consideration, net of cash acquired	$ 4,600
Maximum amount of equity based compensation to be earned over time	9,900
Equity-based compensation, value	$ 900
Gadberry | Minimum
Business Acquisition [Line Items]
Period over which equity based compensation will be accounted for into the future (in years)	2 years
Gadberry | Maximum
Business Acquisition [Line Items]
Period over which equity based compensation will be accounted for into the future (in years)	3 years
Gadberry | Common Class A
Business Acquisition [Line Items]
Consideration transferred, stock	$ 5,500
Wemlo
Business Acquisition [Line Items]
Cash consideration, net of cash acquired		$ 6,100
Maximum amount of equity based compensation to be earned over time		$ 6,700
Period over which equity based compensation will be accounted for into the future (in years)		3 years
Purchase Price Allocation
Other intangible assets		$ 6,300
Goodwill		14,400
Wemlo | Common Class A
Business Acquisition [Line Items]
Consideration transferred, stock		$ 3,300