CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Amortized cost	$ 175,158	$ 167,740
Allowance for loan losses	$ 91,866	$ 83,842
Preferred stock, stated value (in dollars per share)	$ 0.20	$ 0.20
Preferred stock shares authorized (in shares)	20,000,000	20,000,000
Common stock par value (in dollars per share)	$ 0.20	$ 0.20
Common stock, shares authorized (in shares)	1,125,000,000.000	1,125,000,000.000
Common stock shares issued (in shares)	430,000,000	425,000,000
Tax benefit for accumulated other comprehensive (loss) income	$ (7,171)	$ (7,186)
Common stock held in treasury (in shares)	4,000,000	1,000,000
Series A Preferred Stock
Preferred stock, stated value (in dollars per share)	$ 50	$ 50
Preferred stock shares outstanding (in shares)	3,300,000	3,300,000
Series B Preferred Stock
Preferred stock, stated value (in dollars per share)	$ 100	$ 100
Preferred stock shares outstanding (in shares)	4,000,000	4,000,000