XML 76 R63.htm IDEA: XBRL DOCUMENT v3.8.0.1
Securities Securities (Realized Gains and Losses on Sale of Securities) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]      
Available-for-sale Securities, Gross Realized Gains $ 92 $ 10 $ 0
Available-for-sale Securities, Gross Realized Losses (495) 0 0
Marketable Securities, Realized Gain (Loss) (403) 10 0
Proceeds from sale of available-for-sale securities $ 40,144 $ 5,227 $ 0