Equity (Tables)

12 Months Ended

Dec. 31, 2011

Equity

Schedule of weighted average assumptions used to estimate the grant date fair value of options granted

	2011			2010			2009
Dividend yield		2.00	%		2.00	%		2.15	%
Expected life of option		4.2 years			5.1 years			5 years
Risk-free interest rate		1.00	%		2.09	%		2.17	%
Expected stock price volatility		47.98	%		50.07	%		53.08	%

Summary of the status of stock options and changes during the period

	2011					2010					2009
	Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price		Options Outstanding			Weighted Average Exercise Price
Balance at beginning of year		1,353,002		$	58.85		1,324,221		$	56.74		937,706		$	61.33
Granted		212,400			66.42		180,250			62.00		443,850			46.08
Exercised		(243,901	)		40.48		(109,636	)		31.49		(22,000	)		28.17
Lapsed or cancelled		(44,301	)		65.89		(41,833	)		77.33		(35,335	)		62.75
Balance at end of year		1,277,200		$	63.37		1,353,002		$	58.85		1,324,221		$	56.74
Options exercisable at end of year		644,429		$	72.31		631,224		$	69.42		595,851		$	62.17
Weighted average fair value of options granted during the year	$	4,647,554				$	4,333,281				$	8,276,500

Summary of restricted stock and charges during the period

	2011			2010			2009
Balance at beginning of year		2,728,290			2,330,532			1,824,190
Granted		185,333			400,925			506,342
Cancelled		(1,167	)		(3,167	)		—
Balance at end of year		2,912,456			2,728,290			2,330,532
Vested during the year		66,299			153,644			420,050
Compensation expense recorded	$	17,365,401		$	15,327,206		$	23,301,744
Weighted average fair value of restricted stock granted during the year	$	21,768,084		$	28,269,983		$	4,979,218

Schedule of earnings per share calculation

Numerator (Income)	2011		2010		2009
Basic Earnings:
Income attributable to SL Green common stockholders	$	617,232	$	270,826	$	37,669
Effect of Dilutive Securities:
Redemption of units to common shares		14,629		4,574		1,221
Stock options		—		—		—
Diluted Earnings:
Income attributable to SL Green common stockholders	$	631,861	$	275,400	$	38,890

Denominator Weighted Average (Shares)	2011		2010		2009
Basic Shares:
Shares available to common stockholders		83,762		78,101		69,735
Effect of Dilutive Securities:
Redemption of units to common shares		1,985		1,321		2,230
3.0% exchangeable senior debentures due 2017		—		—		—
3.0% exchangeable senior debentures due 2027		—		—		—
4.0% exchangeable senior debentures due 2025		—		—		—
Stock-based compensation plans		497		339		79
Diluted Shares		86,244		79,761		72,044