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Equity and Accumulated Other Comprehensive Loss, Net (Noncontrolling Interests in Operating Partnership) (Details) $ in Millions | Mar. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) shares
--- | --- | ---
Class of Stock [Line Items] |  |
Number of units (units) | 205,874,914 | 205,470,300
Percentage of total | 95.90% | 96.00%
Common stock conversion ratio | 1 |
Common units held by third parties |  |
Class of Stock [Line Items] |  |
Common units held by third parties (units) | 6,730,727 | 6,899,094
Percentage of total | 3.20% | 3.20%
Incentive units held by employees and directors (see Note 14) |  |
Class of Stock [Line Items] |  |
Incentive units held by employees and directors (units) | 2,005,761 | 1,590,001
Percentage of total | 0.90% | 0.80%
Noncontrolling Interests in Operating Partnership |  |
Class of Stock [Line Items] |  |
Number of units (units) | 214,611,402 | 213,959,395
Percentage of total | 100.00% | 100.00%
Digital Realty Trust, L.P. |  |
Class of Stock [Line Items] |  |
Common stock conversion ratio | 1 |
Redeemable noncontrolling interests – operating partnership | $ | $ 889.0 | $ 887.0

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- Definition The number of each class of partnership units outstanding at the balance sheet date. Units represent shares of ownership of the general, limited, and preferred partners. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(b)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04.16(a)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB TOPIC 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 + Details
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- Definition Redemption value, as if currently redeemable, of redeemable noncontrolling interest classified as temporary equity and the election has been made to accrete changes in redemption value to the earliest redemption date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 24(b) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
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