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Earnings per Common Share or Unit (Tables) | 3 Months Ended
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Mar. 31, 2022
Earnings per Common Share or Unit |
Summary of Basic and Diluted Earnings Per Share and Unit | The following is a summary of basic and diluted income per share/unit (in thousands, except per share/unit amounts): ​ Digital Realty Trust, Inc. Earnings per Common Share
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2022 |  | 2021
Net income available to common stockholders | ​ | $ | 63,100 | ​ | $ | 372,406
Weighted average shares outstanding—basic | ​ |  | 284,526 | ​ |  | 281,095
Potentially dilutive common shares: | ​ |  |  | ​ |  |
Unvested incentive units | ​ |  | 348 | ​ |  | 324
Unvested restricted stock | ​ | ​ | 91 | ​ | ​ | 158
Market performance-based awards | ​ |  | 60 | ​ |  | 340
Weighted average shares outstanding—diluted | ​ |  | 285,025 | ​ |  | 281,917
Income per share: | ​ |  |  | ​ |  |
Basic | ​ | $ | 0.22 | ​ | $ | 1.32
Diluted | ​ | $ | 0.22 | ​ | $ | 1.32
​ Digital Realty Trust, L.P. Earnings per Unit
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31,
​ |  | 2022 |  | 2021
Net income available to common unitholders | ​ | $ | 64,700 | ​ | $ | 382,206
Weighted average units outstanding—basic | ​ |  | 290,163 | ​ |  | 288,377
Potentially dilutive common units: | ​ |  |  | ​ |  |
Unvested incentive units | ​ |  | 348 | ​ |  | 324
Unvested restricted units | ​ | ​ | 91 | ​ | ​ | 158
Market performance-based awards | ​ |  | 60 | ​ |  | 340
Weighted average units outstanding—diluted | ​ |  | 290,662 | ​ |  | 289,199
Income per unit: | ​ |  |  | ​ |  |
Basic | ​ | $ | 0.22 | ​ | $ | 1.32
Diluted | ​ | $ | 0.22 | ​ | $ | 1.32
Schedule of Antidilutive Securities Excluded from Calculations | ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31, | ​
​ |  | 2022 |  | 2021 |
Shares subject to Forward Equity Offering | ​ | 6,250 | ​ | — | ​
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc. |  | 7,552 |  | 7,283 |
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Stock |  | — |  | 1,476 |
Potentially dilutive Series J Cumulative Redeemable Preferred Stock |  | 1,452 |  | 1,462 |
Potentially dilutive Series K Cumulative Redeemable Preferred Stock | ​ | 1,527 | ​ | 1,537 | ​
Potentially dilutive Series L Cumulative Redeemable Preferred Stock | ​ | 2,505 | ​ | 2,521 | ​
Total |  | 19,286 |  | 14,279 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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