Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Maturities of Time Deposits [Abstract]
Within one year	$ 405,327
After one but within two years	143,401
After two but within three years	231,417
After three but within four years	37,030
After four but within five years	35,028
After five years	20,208
Total	872,411	$ 908,827
Time Deposits, $250,000 or More [Abstract]
Time deposits of $250,000 or more	$ 84,300	$ 84,900