Borrowings Schedule of Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Schedule of Borrowings [Line Items]
Short-term Debt	$ 4,000
Long-term Debt	14,063	$ 0
Advances from Federal Home Loan Banks	40,094	20,000
Junior subordinated debentures	23,917	20,620
Short Term and Long Term Borrowings	267,837	169,462
Securities Sold under Agreements to Repurchase [Member]
Schedule of Borrowings [Line Items]
Short-term Debt	185,763	128,842
Notes Payable, Other Payables [Member]
Schedule of Borrowings [Line Items]
Short-term Debt	$ 4,000	$ 0