CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
CONSOLIDATED BALANCE SHEETS
Available for sale, amortized cost (in dollars)	$ 655,989	$ 670,003
Held to maturity, fair value	313,553	331,468
Covered loans, allowance	$ 1,217	$ 1,532
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	98,584,947	98,896,184
Common stock, shares outstanding	98,584,947	98,896,184
Employee stock trust, shares	21,453	22,196