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Partners' Capital of the Operating Partnership (Tables) | 9 Months Ended
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Sep. 30, 2018
Equity [Abstract] |
Schedule of calculation of numerator and denominator in earnings per unit | The Operating Partnership's earnings per unit for the three and nine months ended September 30, 2018 and 2017, respectively, are computed as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
Numerator | 2018 |  | 2017 |  | 2018 |  | 2017
Basic Earnings: |  |  |  |  |  |  |
Income attributable to SLGOP common unitholders | $ | 93,006 |  |  | $ | 40,681 |  |  | $ | 309,187 |  |  | $ | 61,149 |
Less: distributed earnings allocated to participating securities | (125 | ) |  | (109 | ) |  | (371 | ) |  | (330 | )
Less: undistributed earnings allocated to participating securities | (33 | ) |  | — |  |  | (138 | ) |  | — |
Net Income attributable to SLGOP common unitholders (numerator for basic earnings per unit) | $ | 92,848 |  |  | $ | 40,572 |  |  | $ | 308,678 |  |  | $ | 60,819 |
Add back: undistributed earnings allocated to participating securities | 33 |  |  | — |  |  | 138 |  |  | — |
Add back: distributed earnings allocated to participating securities | 125 |  |  | 109 |  |  | 371 |  |  | 330 |
Income attributable to SLGOP common unitholders (numerator for diluted earnings per unit) | $ | 93,006 |  |  | $ | 40,681 |  |  | $ | 309,187 |  |  | $ | 61,149 |
| Three Months Ended September 30, |  | Nine Months Ended September 30,
Denominator | 2018 |  | 2017 |  | 2018 |  | 2017
Basic units: |  |  |  |  |  |  |
Weighted average common units outstanding | 90,209 |  |  | 102,326 |  |  | 92,369 |  |  | 104,001 |
Effect of Dilutive Securities: |  |  |  |  |  |  |
Stock-based compensation plans | 219 |  |  | 244 |  |  | 211 |  |  | 279 |
Diluted weighted average common units outstanding | 90,428 |  |  | 102,570 |  |  | 92,580 |  |  | 104,280 |

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- References No definition available. + Details
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