Other Non-interest Income and Non-interest Expense - Summary of Other Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Other Income and Expenses [Abstract]
Referral revenue	$ 14,234		$ 5,011		$ 5,474
Realized losses on sales of securities available for sale and other investments	(93)		11		(8)
Other	13,078		8,420		8,365
Total other non-interest income	$ 27,219	[1]	$ 13,442	[1]	$ 13,831

[1] Prior period amounts have been reclassified to conform to the current period presentation. See “Notes to Consolidated Financial Statements – Note 1. Summary of Significant Accounting Policies” for additional information.