Partners' Capital of the Operating Partnership (Tables)

6 Months Ended

Jun. 30, 2021

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, 2021 and 2020, respectively, are computed as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
Numerator	2021		2020		2021		2020
Basic Earnings:
Net income attributable to SLGOP common unitholders	$	111,614	$	59,514	$	103,674	$	180,517
Less: distributed earnings allocated to participating securities	(369)		(333)		(738)		(444)
Less: undistributed earnings allocated to participating securities	(246)		—		—		(391)
Net income attributable to SLGOP common unitholders (numerator for basic earnings per unit)	$	110,999	$	59,181	$	102,936	$	179,682
Add back: dilutive effect of earnings allocated to participating securities	369		333		738		444
Add back: undistributed earnings allocated to participating securities	246		—		—		391
Net income attributable to SLGOP common unitholders (numerator for diluted earnings per unit)	$	111,614	$	59,514	$	103,674	$	180,517

	Three Months Ended June 30,		Six Months Ended June 30,
Denominator	2021	2020	2021	2020
Basic units:
Weighted average common units outstanding	73,073	77,658	73,117	78,768
Effect of Dilutive Securities:
Stock-based compensation plans	654	408	625	440
Contingently issuable units from special distribution declared December 4, 2020 and issued January 15, 2021	—	—	157	—
Diluted weighted average common units outstanding	73,727	78,066	73,899	79,208