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Consolidated Statements of Changes in Equity (Unaudited) (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2015
Common distributions declared per share	$ 0.5550
Series E Preferred Stock [Member]
Preferred stock distributions declared	$ 0.6644

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section S99



-Paragraph 1



-Subparagraph (SX 210.3-04)



-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Article 3

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X

- Definition

Per share amount of cumulative preferred dividends in arrears.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 505



-SubTopic 10



-Section 50



-Paragraph 5



-Subparagraph (b)



-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644

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