Borrowed Funds - Schedule of Short-Term Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Total short-term borrowings	$ 655,726	$ 1,147,958
Short-term borrowings
Debt Instrument [Line Items]
FHLB advances	500,000	1,000,000
Securities sold under agreements to repurchase	155,726	147,958
Total short-term borrowings	$ 655,726	$ 1,147,958