Partners' Capital of the Operating Partnership (Tables)

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Schedule of calculation of numerator and denominator in earnings per unit

The Operating Partnership's earnings per unit for the three and six months ended June 30, 2020 and 2019, respectively, are computed as follows (in thousands):

	Three Months Ended June 30,						Six Months Ended June 30,
Numerator	2020			2019			2020			2019
Basic Earnings:
Income attributable to SLGOP common unitholders	$	59,514		$	169,413		$	180,517		$	215,482
Less: distributed earnings allocated to participating securities	(333		)	(128		)	(444		)	(257		)
Less: undistributed earnings allocated to participating securities	—			(164		)	(391		)	(115		)
Net Income attributable to SLGOP common unitholders (numerator for basic earnings per unit)	$	59,181		$	169,121		$	179,682		$	215,110
Add back: dilutive effect of earnings allocated to participating securities	333			128			444			257
Add back: undistributed earnings allocated to participating securities	—			164			391			115
Income attributable to SLGOP common unitholders (numerator for diluted earnings per unit)	$	59,514		$	169,413		$	180,517		$	215,482

	Three Months Ended June 30,		Six Months Ended June 30,
Denominator	2020	2019	2020	2019
Basic units:
Weighted average common units outstanding	79,810	87,231	80,952	87,437
Effect of Dilutive Securities:
Stock-based compensation plans	409	167	440	169
Diluted weighted average common units outstanding	80,219	87,398	81,392	87,606