Partners' Capital of the Operating Partnership (Tables)

9 Months Ended

Sep. 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 nine months ended September 30, 2015 and 2014 are computed as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
Numerator	2015		2014		2015		2014
Basic and Diluted Earnings:
Income attributable to SLGOP common unitholders	$	170,125	$	67,324	$	174,463	$	462,329

	Three Months Ended September 30,		Nine Months Ended September 30,
Denominator	2015	2014	2015	2014
Basic units:
Weighted average common units outstanding	103,522	99,319	103,129	98,860
Effect of Dilutive Securities:
Stock-based compensation plans	407	387	480	462
Diluted weighted average common units outstanding	103,929	99,706	103,609	99,322