CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Available for sale, amortized cost (in dollars)	$ 670,003	$ 924,755
Held to maturity, fair value	331,468	118,345
Covered loans, allowance	$ 1,532	$ 4,611
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	125,000,000	125,000,000
Common stock, shares issued	98,896,184	90,181,888
Common stock, shares outstanding	98,896,184	90,181,888
Employee stock trust, shares	22,196
Series B Preferred Stock
Preferred stock, par value (in dollars per share)		$ 0.01
Preferred stock, shares authorized		10,000,000
Preferred stock, liquidation value per share (in dollars per share)		$ 1,000
Preferred stock, shares issued		114,068
Preferred stock, shares outstanding		114,068