Short-Term Borrowings - Balance, Weighted Average and Interest Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Short-term Debt [Line Items]
Balance	$ 84,491	$ 140,163	$ 301,207
Weighted Average Interest Rate	0.10%	0.22%	1.76%
Interest Expense	$ 91	$ 1,603	$ 6,526
REPOs
Short-term Debt [Line Items]
Balance	$ 84,491	$ 65,163	$ 19,888
Weighted Average Interest Rate	0.10%	0.25%	0.74%
Interest Expense	$ 79	$ 169	$ 110
FHLB advances
Short-term Debt [Line Items]
Balance	$ 0	$ 75,000	$ 281,319
Weighted Average Interest Rate	0.00%	0.19%	1.84%
Interest Expense	$ 12	$ 1,434	$ 6,416