Preferred dividends, less administrative fees, paid to investors in a captive REIT.

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Amount of paid and unpaid cash dividends declared and applicable to holders of share-based compensation, for example, but not limited to, non-vested shares, stock options, or restricted stock units.

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No definition available.

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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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No definition available.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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- Definition

Other preferred stock dividends and adjustments, not otherwise defined in the taxonomy, that are necessary to adjust net income to obtain net income applicable to common stockholders.

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section Q

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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

Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.

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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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No definition available.

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Summary of Significant Accounting Policies (Details 10) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014 segment	Dec. 31, 2013	Dec. 31, 2012
Numerator:
Net income	$ 14,257us-gaap_ProfitLoss	$ 33,643us-gaap_ProfitLoss	$ 43,535us-gaap_ProfitLoss	$ (3,496)us-gaap_ProfitLoss	$ 5,249us-gaap_ProfitLoss	$ 15,817us-gaap_ProfitLoss	$ 20,009us-gaap_ProfitLoss	$ 28,926us-gaap_ProfitLoss	$ 87,939us-gaap_ProfitLoss	$ 70,001us-gaap_ProfitLoss	$ 49,557us-gaap_ProfitLoss
Income from consolidated joint venture attributable to non-controlling interest									(6,676)	(4,013)	(1,761)
Distributions to non-controlling interest									(32)	(32)	(31)
Preferred stock dividends and redemption charges									(9,200)	(19,013)	(29,748)
Dividends paid on unvested restricted stock compensation									(969)	(201)
Undistributed income allocated to unvested restricted stock compensation										(235)	(203)
Numerator for basic and diluted earnings available to common stockholders									71,062	46,507	17,814
Income available to common stockholders									$ 72,031	$ 46,943	$ 18,017
Denominator:
Weighted average basic and diluted common shares outstanding (in shares)									192,674	161,784	127,027
Basic and diluted earnings available to common stockholders per common share (in dollars per share)	$ 0.05us-gaap_EarningsPerShareBasicAndDiluted	$ 0.14us-gaap_EarningsPerShareBasicAndDiluted	$ 0.22us-gaap_EarningsPerShareBasicAndDiluted	$ (0.04)us-gaap_EarningsPerShareBasicAndDiluted	$ 0.01us-gaap_EarningsPerShareBasicAndDiluted	$ 0.07us-gaap_EarningsPerShareBasicAndDiluted	$ 0.09us-gaap_EarningsPerShareBasicAndDiluted	$ 0.12us-gaap_EarningsPerShareBasicAndDiluted	$ 0.37us-gaap_EarningsPerShareBasicAndDiluted	$ 0.29us-gaap_EarningsPerShareBasicAndDiluted	$ 0.14us-gaap_EarningsPerShareBasicAndDiluted
Segment Reporting
Number of operating segments									1us-gaap_NumberOfOperatingSegments