Payout per unit average 30 days closing price.

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Payout range maximum.

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Payout range minimum.

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Preferred Stock, Redemption Amount, Reduction of Net Loss

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- Definition

This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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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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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 redemption (or callable) amount of currently redeemable preferred stock. Includes amounts representing dividends not currently declared or paid but which will be payable under the redemption features or for which ultimate payment is solely within the control of the issuer.

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The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer.

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The cash inflow from the additional capital contribution to the entity.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Stock-Based Compensation Stock Based Compensation (Narrative) (Details) (USD $)	0 Months Ended		1 Months Ended	3 Months Ended		9 Months Ended
	Aug. 05, 2013	Apr. 12, 2013	May 31, 2013	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	May 13, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense				$ 2,300,000	$ 300,000	$ 5,900,000	$ 2,500,000
Document Fiscal Year Focus						2013
Common Stock, Shares, Issued	69,000,000	16,500,000		193,230,213		193,230,213			107,660,080
Proceeds from Issuance of Common Stock	661,300,000	165,100,000				826,529,000	0
Preferred Stock, Par or Stated Value Per Share				$ 1		$ 1		$ 1.00	$ 1
Preferred Stock, Redemption Price Per Share								$ 25.00
Preferred Stock, Redemption Amount								74,800,000
Preferred Stock, Redemption Amount, Reduction of Net Loss			$ 2,700,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period						159,782
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period						3 years
SNL RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period						124,992
FFO RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period						65,347
Performance based Restricted Stock Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payout Range Minimum						0.00%
Payout Range Maximum						200.00%
Payout Per Unit Average Thirty Days Closing Price						30 days