Partners' Capital of the Operating Partnership (Tables)

9 Months Ended

Sep. 30, 2014

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, 2014 and 2013 is computed as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
Numerator	2014		2013		2014		2013
Basic and Diluted Earnings:
Income attributable to SLGOP common unitholders	$	67,324	$	38,135	$	462,329	$	66,119

	Three Months Ended September 30,		Nine Months Ended September 30,
Denominator	2014	2013	2014	2013
Basic units:
Weighted average common units outstanding	99,319	94,780	98,860	94,389
Effect of Dilutive Securities:
Stock-based compensation plans	387	236	462	242
Diluted weighted average common units outstanding	99,706	95,016	99,322	94,631