Mergers and Acquisitions - Schedule of Assets and Consideration (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill	$ 631,496	$ 369,477	$ 369,031
Insurance Agency Acquisition
Business Acquisition [Line Items]
Other assets	133
Total assets acquired	2,163	1,210
Total cash paid	(4,354)	(1,363)
Contingent consideration	(449)	(293)
Other liabilities assumed	(355)
Total fair value of consideration	(5,158)	(1,656)
Goodwill	2,995	446
Customer list intangible | Insurance Agency Acquisition
Business Acquisition [Line Items]
Total assets acquired	1,860	1,130
Non-compete intangible | Insurance Agency Acquisition
Business Acquisition [Line Items]
Total assets acquired	$ 170	$ 80