Consolidated Balance Sheets Parenthetical	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Common Stock, Shares Authorized	300,000,000us-gaap_CommonStockSharesAuthorized	300,000,000us-gaap_CommonStockSharesAuthorized
Treasury Stock, Shares	4,793,566us-gaap_TreasuryStockShares	5,127,332us-gaap_TreasuryStockShares
Common Stock, Shares, Issued	170,183,540us-gaap_CommonStockSharesIssued	170,183,540us-gaap_CommonStockSharesIssued
Preferred Stock, Shares Authorized	7,000,000us-gaap_PreferredStockSharesAuthorized
Series A Non-Cumulative Perpetual Preferred Stock
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	115,000	115,000
Preferred Stock, Shares Outstanding	100,000	100,000

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Subparagraph (SX 210.5-02.28)

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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