Deposits - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Banking and Thrift, Other Disclosure [Abstract]
Deposits	$ 19,979,721		$ 19,979,721		$ 20,828,124
Brokered deposits	9,000,000		9,000,000		10,100,000
Retail and other deposits	11,000,000		11,000,000		10,700,000
Stable interest-bearing deposits, total	7,700,000		7,700,000		7,300,000
Brokered deposit placement fee	4,000	$ 4,000	7,000	$ 8,000
Third party broker fees paid	2,000	$ 1,000	4,000	$ 1,000
Deposits exceeding FDIC insurance limits	523,000		523,000		743,000
Accrued interest on deposits	$ 33,000		$ 33,000		$ 35,000