Partners' Capital of the Operating Partnership (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of Calculation of Numerator and Denominator in Earnings Per Unit

The Operating Partnership's earnings per unit for the years ended December 31, 2019, 2018, and 2017 respectively are computed as follows (in thousands):

	Year Ended December 31,
Numerator	2019			2018			2017
Basic Earnings:
Income attributable to SLGOP common unitholders	$	268,785		$	244,528		$	90,419
Less: distributed earnings allocated to participating securities	(1,739		)	$	(552	)	$	(471	)
Net Income attributable to SLGOP common unitholders (numerator for basic earnings per unit)	$	267,046		$	243,976		$	89,948
Add back: Dilutive effect of earnings allocated to participating securities	1,719			552			471
Income attributable to SLGOP common unitholders	$	268,765		$	244,528		$	90,419

	Year Ended December 31,
Denominator	2019	2018	2017
Basic units:
Weighted average common units outstanding	86,008	91,315	103,127
Effect of Dilutive Securities:
Stock-based compensation plans	554	215	276
Diluted weighted average common units outstanding	86,562	91,530	103,403