Deposits - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Banking and Thrift, Other Disclosure [Abstract]
Deposits	$ 20,361,485		$ 20,361,485		$ 21,448,071
Brokered deposits	8,700,000		8,700,000		9,900,000
Retail and other deposits	11,700,000		11,700,000		11,500,000
Stable interest-bearing deposits, total	7,600,000		7,600,000		8,000,000
Brokered deposit placement fee	3,000	$ 4,000	6,000	$ 7,000
Third party broker fees paid	0	$ 2,000	3,000	$ 4,000
Deposits exceeding FDIC insurance limits	457,000		457,000		615,000
Accrued interest on deposits	$ 69,000		$ 69,000		$ 59,000