Loan Servicing (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid balance of loans serviced for others	$ 919,136	$ 635,224	$ 514,294
Federal Home Loan Mortgage Corporation
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid balance of loans serviced for others	765,547	514,539	354,393
Fannie Mae
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid balance of loans serviced for others	60,839	69,072	82,922
Equity Bank
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid balance of loans serviced for others	60,107	0	0
Federal Home Loan Bank
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid balance of loans serviced for others	32,558	51,479	76,815
Chevy Chase Mortgage Company
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities Acquired During Period [Line Items]
Unpaid balance of loans serviced for others	$ 85	$ 134	$ 164