CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Available-for-sale investments, amortized cost	$ 150,117	$ 106,977
Allowance for loan losses	60,527	68,081
Tax benefit for accumulated other comprehensive (loss) income	$ (354)	$ (1,849)
Preferred Stock, stated value (usd per share)	$ 0.20	$ 0
Preferred stock shares authorized (in shares)	20,000,000	0
Common stock par value (usd per share)	$ 0.20	$ 0
Common stock, shares authorized	1,125,000,000	0
Common stock shares issued (in shares)	423,000,000	0
Common stock held in treasury (in shares)	359,000,000	0
Series A Preferred Stock
Preferred Stock, stated value (usd per share)	$ 50	$ 0
Preferred stock shares outstanding (in shares)	3,300,000	0
Series B Preferred Stock
Preferred Stock, stated value (usd per share)	$ 100	$ 0
Preferred stock shares outstanding (in shares)	4,000,000	0