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Earnings Per Share ("EPS") and Earnings Per Unit ("EPU") (Tables) | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Line Items] |
Summary of calculation of numerator and denominator in basic and diluted earnings per share | Summaries of the numerator and denominator for purposes of basic and diluted EPS calculations are set forth below (in thousands, except per share data):
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Numerator: |  |  |  |  |  |  |  |  |
Net income attributable to COPT | $ | 21,257 |  |  | $ | 18,697 |  |  | $ | 148,907 |  |  | $ | 55,281 |
Income attributable to share-based compensation awards | (123 | ) |  | (114 | ) |  | (495 | ) |  | (348 | )
Numerator for basic EPS on net income attributable to COPT common shareholders | 21,134 |  |  | 18,583 |  |  | 148,412 |  |  | 54,933 |
Redeemable noncontrolling interests | — |  |  | — |  |  | 100 |  |  | — |
Income attributable to share-based compensation awards | 5 |  |  | — |  |  | 26 |  |  | — |
Numerator for diluted EPS on net income attributable to COPT common shareholders | $ | 21,139 |  |  | $ | 18,583 |  |  | $ | 148,538 |  |  | $ | 54,933 |
Denominator (all weighted averages): |  |  |  |  |  |  |  |  |
Denominator for basic EPS (common shares) | 111,582 |  |  | 104,379 |  |  | 111,036 |  |  | 102,401 |
Dilutive effect of share-based compensation awards | 361 |  |  | 231 |  |  | 313 |  |  | 165 |
Dilutive effect of redeemable noncontrolling interests | — |  |  | — |  |  | 123 |  |  | — |
Dilutive effect of forward equity sale agreements | — |  |  | 178 |  |  | — |  |  | 60 |
Denominator for diluted EPS (common shares) | 111,943 |  |  | 104,788 |  |  | 111,472 |  |  | 102,626 |
Basic EPS | $ | 0.19 |  |  | $ | 0.18 |  |  | $ | 1.34 |  |  | $ | 0.54 |
Diluted EPS | $ | 0.19 |  |  | $ | 0.18 |  |  | $ | 1.33 |  |  | $ | 0.54 |
Schedule of securities excluded from computation of diluted earnings per share | Our diluted EPS computations do not include the effects of the following securities since the conversions of such securities would increase diluted EPS for the respective periods (in thousands):
| Weighted Average Shares Excluded from Denominator
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Conversion of common units | 1,312 |  |  | 2,135 |  |  | 1,323 |  |  | 2,847 |
Conversion of redeemable noncontrolling interests | 975 |  |  | — |  |  | 893 |  |  | — |
Conversion of Series I preferred units | 176 |  |  | 176 |  |  | 176 |  |  | 176 |
Corporate Office Properties, L.P. |
Earnings Per Share [Line Items] |
Summary of calculation of numerator and denominator in basic and diluted earnings per share | Summaries of the numerator and denominator for purposes of basic and diluted EPU calculations are set forth below (in thousands, except per unit data):
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Numerator: |  |  |  |  |  |  |  |  |
Net income attributable to COPLP | $ | 21,681 |  |  | $ | 19,242 |  |  | $ | 151,257 |  |  | $ | 57,308 |
Preferred unit distributions | (157 | ) |  | (165 | ) |  | (487 | ) |  | (495 | )
Income attributable to share-based compensation awards | (139 | ) |  | (114 | ) |  | (592 | ) |  | (348 | )
Numerator for basic EPU on net income attributable to COPLP common unitholders | 21,385 |  |  | 18,963 |  |  | 150,178 |  |  | 56,465 |
Redeemable noncontrolling interests | — |  |  |  |  |  | 100 |  |  | — |
Income attributable to share-based compensation awards | 5 |  |  | — |  |  | 26 |  |  | — |
Numerator for diluted EPU on net income attributable to COPLP common unitholders | $ | 21,390 |  |  | $ | 18,963 |  |  | $ | 150,304 |  |  | $ | 56,465 |
Denominator (all weighted averages): |  |  |  |  |  |  |  |  |
Denominator for basic EPU (common units) | 112,894 |  |  | 106,514 |  |  | 112,359 |  |  | 105,248 |
Dilutive effect of redeemable noncontrolling interests | — |  |  | — |  |  | 123 |  |  | — |
Dilutive effect of share-based compensation awards | 361 |  |  | 231 |  |  | 313 |  |  | 165 |
Dilutive effect of forward equity sale agreements | — |  |  | 178 |  |  | — |  |  | 60 |
Denominator for diluted EPU (common units) | 113,255 |  |  | 106,923 |  |  | 112,795 |  |  | 105,473 |
Basic EPU | $ | 0.19 |  |  | $ | 0.18 |  |  | $ | 1.34 |  |  | $ | 0.54 |
Diluted EPU | $ | 0.19 |  |  | $ | 0.18 |  |  | $ | 1.33 |  |  | $ | 0.54 |
Schedule of securities excluded from computation of diluted earnings per share | Our diluted EPU computations do not include the effects of the following securities since the conversions of such securities would increase diluted EPU for the respective periods (in thousands):
| Weighted Average Shares Excluded from Denominator
| For the Three Months Ended September 30, |  | For the Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
Conversion of redeemable noncontrolling interests | 975 |  |  | — |  |  | 893 |  |  | — |
Conversion of Series I preferred units | 176 |  |  | 176 |  |  | 176 |  |  | 176 |

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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=6371337&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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