Deposits - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Banking and Thrift, Other Disclosure [Abstract]
Deposits	$ 21,803,666		$ 21,448,071
Brokered deposits	10,300,000		9,900,000
Retail and other deposits	11,500,000		11,500,000
Stable interest-bearing deposits, total	8,000,000		8,000,000
Brokered deposit placement fee	3,000	$ 3,000
Third party broker fees paid	3,000	$ 2,000
Deposits exceeding FDIC insurance limits	471,000		615,000
Accrued interest on deposits	$ 69,000		$ 59,000