Securities Available-for-Sale - Unrealized Gains (Losses) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Investments, Debt and Equity Securities [Abstract]
Total unrealized gains/(losses) on securities available for sale, Gross Unrealized Gains	$ 11,824	$ 10,754
Total unrealized gains/(losses) on securities available for sale, Gross Unrealized Losses	(3,250)	(3,472)
Total unrealized gains/(losses) on securities available for sale, Net Unrealized Gains/(Losses)	8,574	7,282
Income tax expense/(benefit), Gross Unrealized Gains	(4,152)	(3,776)
Income tax expense/(benefit), Gross Unrealized Losses	1,141	1,219
Income tax expense/(benefit), Net Unrealized Gains/(Losses)	(3,011)	(2,557)
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss), Gross Unrealized Gains	7,672	6,978
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss), Gross Unrealized Losses	(2,109)	(2,253)
Net unrealized gains/(losses), net of tax included in accumulated other comprehensive income/(loss), Net Unrealized Gains/(Losses)	$ 5,563	$ 4,725