Derivative Financial Instruments - Offsetting of Derivative Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Derivatives subject to master netting arrangements:
Gross amounts offset in the consolidated balance sheet	$ (321,496)	$ (64,977)
Total
Gross amounts of recognized assets	485,656	398,672
Net amounts of assets presented in the balance sheet	164,160	333,695
Interest rate lock commitments
Total
Net amounts of assets presented in the balance sheet	12,195	323,473
MBS put options
Total
Gross amounts of recognized assets	17,152	7,655
MBS call options
Total
Gross amounts of recognized assets	55
Swaptions | Purchases
Total
Gross amounts of recognized assets		1,625
Forward contracts | Purchases
Total
Gross amounts of recognized assets	5,042	20,485
Forward contracts | Sales
Total
Gross amounts of recognized assets	375,955	40,215
Put options on Eurodollar futures | Purchases
Total
Gross amounts of recognized assets	70,577	3,141
Call options on Eurodollar futures | Purchases
Total
Gross amounts of recognized assets	$ 4,680	$ 2,078