Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Maturities of Time Deposits [Abstract]
Within one year	$ 679,497
After one but within two years	129,995
After two but within three years	65,319
After three but within four years	42,953
After four but within five years	12,622
After five years	292
Total	930,678	$ 806,766
Time Deposits, $250,000 or More [Abstract]
Time deposits of $250,000 or more	$ 146,100	$ 92,800