Stockholders' Equity of the Company (Tables)

9 Months Ended

Sep. 30, 2018

Stockholders' Equity Note [Abstract]

Class of Treasury Stock

At September 30, 2018, repurchases executed under the plan were as follows:

Period	Shares repurchased	Average price paid per share	Cumulative number of shares repurchased as part of the repurchase plan or programs	Maximum approximate dollar value of shares that may yet be repurchased under the plan (in millions) (1)
Year ended 2017	8,342,411	$101.64	8,342,411	$1,152.0
First quarter 2018	3,653,928	$97.07	11,996,339	$797.2
Second quarter 2018	3,479,552	$97.22	15,475,891	$458.9
Third quarter 2018	252,947	$99.75	15,728,838	$433.6

(1) Reflective of $2.0 billion plan maximum as of September 30, 2018.

Schedule of Common Stock Issued and Proceeds Received Dividend Reinvestments

The following table summarizes SL Green common stock issued, and proceeds received from dividend reinvestments and/or stock purchases under the DRSPP for the nine months ended September 30, 2018 and 2017, respectively (dollars in thousands):

	Nine Months Ended September 30,
	2018		2017
Shares of common stock issued	1,183		1,771
Dividend reinvestments/stock purchases under the DRSPP	$	64	$	185

Schedule of Earnings Per Share

SL Green's earnings per share for the three and nine months ended September 30, 2018 and 2017 are computed as follows (in thousands):

	Three Months Ended September 30,						Nine Months Ended September 30,
Numerator	2018			2017			2018			2017
Basic Earnings:
Income attributable to SL Green common stockholders	$	88,209		$	38,869		$	293,531		$	58,442
Less: distributed earnings allocated to participating securities	(125		)	(109		)	(371		)	(330		)
Less: undistributed earnings allocated to participating securities	(33		)	—			(138		)	—
Net income attributable to SL Green common stockholders (numerator for basic earnings per share)	$	88,051		$	38,760		$	293,022		$	58,112
Add back: undistributed earnings allocated to participating securities	33			—			138			—
Add back: distributed earnings allocated to participating securities	125			109			371			330
Add back: Effect of dilutive securities (redemption of units to common shares)	4,797			1,812			15,656			2,707
Income attributable to SL Green common stockholders (numerator for diluted earnings per share)	$	93,006		$	40,681		$	309,187		$	61,149

	Three Months Ended September 30,		Nine Months Ended September 30,
Denominator	2018	2017	2018	2017
Basic Shares:
Weighted average common stock outstanding	85,566	97,783	87,692	99,431
Effect of Dilutive Securities:
Operating Partnership units redeemable for common shares	4,643	4,543	4,677	4,570
Stock-based compensation plans	219	244	211	279
Diluted weighted average common stock outstanding	90,428	102,570	92,580	104,280