Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
LIABILITIES AND MEMBERS' CAPITAL
Bond Premium	$ 0	$ 546
Members' capital:
Common Units - Par Value	$ 0	$ 0
Common Units - Issued	66,270,176	65,915,173
Common Units - Outstanding	66,270,176	65,915,173
Series A Preferred Unit
Members' capital:
Series A Preferred Units - Par Value
Series A Preferred Units - Issued	11,399,097	10,585,197
Series A Preferred Units - Outstanding	11,399,097	10,585,197

Common Units Issued.

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The number of common units outstanding in a publicly listed limited liability company.

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Common Units - Par Value.

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- Definition

The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

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Issuance value per share of no-par value, nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

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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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