Derivative Financial Instruments - Offsetting of Derivative Assets - Derivative Assets, Financial Assets, and Collateral Held by Counterparty (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Total
Net amounts of assets presented in the balance sheet	$ 103,901	$ 333,695
Net amount	103,901	333,695
RJ O'Brien
Total
Net amounts of assets presented in the balance sheet	25,552	5,219
Net amount	25,552	5,219
Nomura Securities International, Inc.
Total
Net amounts of assets presented in the balance sheet	6,938
Net amount	6,938
Bank of America, N.A.
Total
Net amounts of assets presented in the balance sheet		3,005
Net amount		3,005
Other
Total
Net amounts of assets presented in the balance sheet	726	1,998
Net amount	726	1,998
Interest rate lock commitments
Total
Net amounts of assets presented in the balance sheet	70,685	323,473
Net amount	$ 70,685	$ 323,473