Represents the number of monthly dividends paid during the period.

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Aggregate dividends paid 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

+ Details

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- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

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- Definition

Cash outflow in the form of ordinary dividends to common shareholders, preferred shareholders and noncontrolling interests, generally out of earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

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- Definition

Aggregate dividends paid during the period for each share of preferred stock outstanding.

+ References

No definition available.

+ Details

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Distributions Paid and Payable (Details) $ / shares in Units, $ in Millions	1 Months Ended						3 Months Ended
	Mar. 31, 2016 $ / shares	Feb. 29, 2016 $ / shares	Jan. 31, 2016 $ / shares	Mar. 31, 2015 $ / shares	Feb. 28, 2015 $ / shares	Jan. 31, 2015 $ / shares	Mar. 31, 2016 USD ($) item $ / shares	Mar. 31, 2015 USD ($) item $ / shares
Common stock
Issuance of common stock
Dividends paid per common share (in dollars per share)	$ 0.1985000	$ 0.1985000	$ 0.1910000	$ 0.1890000	$ 0.1890000	$ 0.1834167	$ 0.5880000	$ 0.5614167
Monthly distributions payable (in dollars per share)	0.199						0.199
Class F Preferred Stock
Issuance of common stock
Monthly distributions payable (in dollars per share)	$ 0.138021						$ 0.138021
Period for which dividends are paid \| item							3	3
Dividends paid per preferred share (in dollars per share)							$ 0.414063	$ 0.414063
Preferred stock dividends paid \| $							$ 6.8	$ 6.8