Stockholders' Equity of the Company (Tables)

9 Months Ended

Sep. 30, 2013

Stockholders' Equity Note [Abstract]

Schedule of earnings per share calculation

Earnings per share for the three and nine months ended September 30, 2013 and 2012 is computed as follows (amounts in thousands):

	Three Months Ended   September 30,				Nine Months Ended   September 30,
	2013		2012		2013		2012
Numerator
Basic Earnings:
Income attributable to SL Green common stockholders	$	37,025	$	7,732	$	64,210	$	136,028
Effect of Dilutive Securities:
Redemption of units to common shares	1,110		567		1,909		4,876
Stock options	—		—		—		—
Diluted Earnings:
Income attributable to SL Green common stockholders	$	38,135	$	8,299	$	66,119	$	140,904

	Three Months Ended   September 30,		Nine Months Ended   September 30,
	2013	2012	2013	2012
Denominator
Basic Earnings:
Weighted average common stock oustanding	91,988	90,241	91,684	88,929
Effect of Dilutive Securities:
Redemption of units to common stock	2,792	3,320	2,705	3,188
3.00% exchangeable senior notes due 2017	—	—	—	—
3.00% exchangeable senior notes due 2027	—	—	—	—
4.00% exchangeable senior debentures due 2025	—	—	—	—
Stock-based compensation plans	236	330	242	368
Diluted weighted average common stock outstanding	95,016	93,891	94,631	92,485