XML 104 R92.htm IDEA: XBRL DOCUMENT v3.10.0.1
Deposits and Related Interest (Narratives) (Details) - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Deposits [Abstract]    
Weighted Average Rate Domestic Deposit 0.65% 0.65%
Time Deposits, $250,000 or More $ 367,800,000 $ 359,600,000
Public Fund Time Deposits, $250,000 or more $ 43,700,000 $ 3,500,000
Public Fund Time Deposits Weighted Average Rate, $250,000 or more 0.54% 0.28%
Public funds deposit $ 285,000,000 $ 153,100,000
Public Fund Collateral Investments 265,100,000 173,000,000
Accrued Interest, Time Deposits 2,600,000  
Bank Overdrafts 360,000 2,200,000
Brokered Certificates of Deposits 503,500,000 471,600,000
Brokered Money Market Deposit $ 27,300,000 $ 46,900,000