CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
ASSETS
Held-to-maturity investment security, fair value	$ 160,135	$ 0
Allowance for loan losses	260,238	264,959
Premises and equipment, accumulated depreciation	$ 103,814	$ 100,060
STOCKHOLDERS’ EQUITY
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	164,496,260	164,246,517
Treasury stock, shares	20,432,509	20,337,284