Date the declared dividend will be paid, in CCYY-MM-DD format.

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

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

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- Definition

Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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No definition available.

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- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (c)

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SUBSEQUENT EVENTS (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended	0 Months Ended	1 Months Ended
	Jan. 31, 2015	Feb. 05, 2015	Feb. 27, 2015	Mar. 02, 2015	Feb. 13, 2015
Preferred Series A [Member]
Subsequent Event [Line Items]
Quarterly amount per share or unit (in dollars per share)					$ 0.5156
Record date	Mar. 16, 2015
Payment date	Mar. 31, 2015
Preferred Series B [Member]
Subsequent Event [Line Items]
Quarterly amount per share or unit (in dollars per share)					$ 0.4968
Record date	Mar. 16, 2015
Payment date	Mar. 31, 2015
Common Shares and Limited Partnership Units [Member]
Subsequent Event [Line Items]
Quarterly amount per share or unit (in dollars per share)					$ 0.1300
Record date	Mar. 16, 2015
Payment date	Apr. 01, 2015
Subsequent Event [Member] \| Commercial Healthcare [Member] \| Jamestown Medical Office Building Jamestown ND [Member]
Subsequent Event [Line Items]
Sales Price of Property Disposed		$ 12.8
Subsequent Event [Member] \| Commercial Retail [Member] \| Weston Walgreens Weston WI [Member]
Subsequent Event [Line Items]
Sales Price of Property Disposed			5.3
Subsequent Event [Member] \| Commercial Office [Member] \| Northgate II Maple Grove MN [Member]
Subsequent Event [Line Items]
Sales Price of Property Disposed				$ 2.7