Face amount or stated value per share of common stock.

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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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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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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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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.

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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.

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Schedule I - Condensed Financial Information of the Registrant (Details) - Condensed Balance Sheet (Parentheticals) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Balance Sheet Statements, Captions [Line Items]
Preferred Stock, Par Value (in Dollars per share)	0	0
Preferred Stock, Shares Authorized	50,000,000us-gaap_PreferredStockSharesAuthorized	50,000,000us-gaap_PreferredStockSharesAuthorized
Common Stock, Par Value (in Dollars per share)	0	0
Voting Common Stock [Member] \| Parent Company [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Common stock, shares authorized	400,000,000
Common stock, shares issued	129,931,812
Common Stock, Par Value (in Dollars per share)	0
Voting Common Stock [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	129,931,812	87,695,495
Common stock, shares outstanding	129,931,812	87,695,495	47,802,816	53,062,528
Nonvoting Common Stock [Member] \| Parent Company [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Common stock, shares authorized	400,000,000
Common Stock, Par Value (in Dollars per share)	0
Common stock, shares outstanding	0
Nonvoting Common Stock [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Common stock, shares authorized		400,000,000
Common stock, shares issued		828,885
Common stock, shares outstanding		828,885		1,469,271
Parent Company [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Preferred Stock, Par Value (in Dollars per share)	0
Preferred Stock, Shares Authorized	50,000,000
Preferred Stock, Shares Outstanding	0