Short-Term Borrowings - Schedule of Short-Term Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Short-term Debt [Line Items]
Total short-term borrowings	$ 489,091	$ 387,706
Securities sold under agreements to repurchase
Short-term Debt [Line Items]
Total short-term borrowings	9,091	7,706
Federal Home Loan Bank short-term advances
Short-term Debt [Line Items]
Total short-term borrowings	$ 480,000	$ 380,000