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Acquisitions, Dispositions, Discontinued Operations and Assets Held for Sale (Narrative) (Details) $ in Millions | 1 Months Ended |
--- | --- | ---
Apr. 30, 2016 USD ($) | Feb. 29, 2016 USD ($) a | Mar. 31, 2015 USD ($) | Jan. 31, 2015 USD ($) | Apr. 26, 2016 a
Area of Land | a |  | 2.0 |  |  |
Payments to Acquire Land |  | $ 4.1 |  |  |
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |  |  |
Area of Land | a |  | 6.3 |  |  |
Number of Units in Real Estate Property |  |  |  | 1,116 |
Proceeds from sales of operating properties |  |  |  | $ 114.4 |
Sales price of land |  | $ 2.2 | $ 0.4 |  |
Gain on sale of land |  | $ 0.4 | $ 0.1 |  |
Number of operating properties sold |  |  |  | 2 |
Gain on Sale of Operating Properties |  |  |  | $ 85.1 |
Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] | Subsequent Event [Member] |  |  |  |  |
Area of Land | a |  |  |  |  | 19.6
Number of Units in Real Estate Property |  |  |  |  | 4,918
Proceeds from sales of operating properties | $ 630.0 |  |  |  |
Number of operating properties sold |  |  |  |  | 15
Weighted average age of operating properties |  |  |  |  | 23

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- Definition The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.14(d)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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- Definition The cash outflow from the acquisition of real estate intended to generate income for the owner; excludes land acquired for use by the owner. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3213-108585 + Details
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- Definition The cash inflow from the sale of land held for investment; excludes sales of land held as inventory or productive use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 + Details
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