CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Amortized Cost	$ 168,964	$ 167,740
Allowance for loan losses	89,805	83,842
Tax benefit for accumulated other comprehensive (loss) income	$ (13,012)	$ (7,186)
Preferred Stock, stated value (in dollars per share)	$ 0.20	$ 0.20
Preferred stock shares authorized (in shares)	20,000,000us-gaap_PreferredStockSharesAuthorized	20,000,000us-gaap_PreferredStockSharesAuthorized
Common stock par value (in dollars per share)	$ 0.20	$ 0.20
Common stock, shares authorized (in shares)	1,125,000,000us-gaap_CommonStockSharesAuthorized	1,125,000,000us-gaap_CommonStockSharesAuthorized
Common stock shares issued (in shares)	428,000,000us-gaap_CommonStockSharesIssued	425,000,000us-gaap_CommonStockSharesIssued
Common stock held in treasury (in shares)	3,000,000us-gaap_TreasuryStockShares	1,000,000us-gaap_TreasuryStockShares
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

Tax effect for accumulated other comprehensive income.

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Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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