Partners' Capital of the Operating Partnership (Tables)

6 Months Ended

Jun. 30, 2015

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, 2015 and 2014 are computed as follows (in thousands):

	Three Months Ended June 30,					Six Months Ended June 30,
Numerator	2015			2014		2015		2014
Basic and Diluted Earnings:
(Loss) income attributable to SLGOP common unitholders	$	(40,683	)	$	244,186	$	4,337	$	395,005

	Three Months Ended June 30,		Six Months Ended June 30,
Denominator	2015	2014	2015	2014
Basic units:
Weighted average common units outstanding	103,487	98,970	102,930	98,627
Effect of Dilutive Securities:
Stock-based compensation plans	—	514	493	501
Diluted weighted average common units outstanding	103,487	99,484	103,423	99,128