Capital - Earnings Per Unit (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Numerator:
Net income	$ 22,734	$ 2,281	$ 59,246	$ 7,282
Private perpetual preferred unit distributions	(241)		(241)
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic	(127)		(374)
Net income attributable to common unitholders	$ 22,366		$ 58,631
Denominator:
Weighted Average Number of Shares Outstanding, Basic and Diluted	263,041,000		250,696,000
Earnings Per Share, Basic and Diluted	$ 0.09		$ 0.23
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	674,642		607,654

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Net Income Attributable to Common Stockholders, Basic and Diluted

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- Definition

Undistributed Earnings (Loss) Allocated to Participating Securities, Basic

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

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-Section 50

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-Glossary Contingent Stock Agreement

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- Definition

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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- Definition

The aggregate value of preferred stock dividends and other adjustments necessary to derive net income apportioned to common stockholders.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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- Definition

Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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