CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Securities held-to-maturity
Securities held-to-maturity, fair value (in dollars)	$ 109,821	$ 94,953
Preferred stock
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	21,004	21,004
Preferred stock, outstanding (in shares)	21,004	21,004
Preferred stock, liquidation preference (in dollars)	$ 21,004	$ 21,004
Common stock
Common stock, par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	32,113,479	26,503,305
Common stock, shares outstanding	32,113,479	26,503,305