CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
ASSETS
Held-to-maturity investment security, fair value	$ 154,296
Allowance for loan losses	255,812	$ 264,959
Premises and equipment, accumulated depreciation	$ 110,668	$ 100,060
STOCKHOLDERS’ EQUITY
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	164,567,479	164,246,517
Treasury stock, shares (in shares)	20,434,175	20,337,284