NET LOSS PER COMMON SHARE (Tables)

12 Months Ended

Dec. 31, 2016

Computation of Basic and Diluted Earnings per Common Share

The following table sets forth the computation of basic and diluted earnings per common share (in thousands of common shares):

	Years Ended December 31,
	2016			2015			2014
Numerator:
Net loss, basic	$	(630,210	)	$	(171,799	)	$	(133,969	)
Gain on common stock held by the NQDC		(3,184	)		—			—
Net loss, diluted		(633,394	)		(171,799	)		(133,969	)
Denominator:
Weighted-average common shares outstanding, basic		165,985			160,025			146,349
Effect of dilutive securities:
Common shares held by the NQDC		234			—			—
Weighted-average common shares outstanding, diluted		166,219			160,025			146,349
Net loss per common share, basic	$	(3.80	)	$	(1.07	)	$	(0.92	)
Net loss per common share, diluted	$	(3.81	)	$	(1.07	)	$	(0.92	)

Schedule Of Anti-Dilutive Common Stock Excluded From Computation of Diluted Net Loss Per Share

In addition to the equity instruments included in the table above, the table below presents potential shares of common stock that were excluded from the computation as they were anti-dilutive using the treasury stock method (in thousands):

	Years Ended December 31,
	2016		2015		2014
Options to purchase common stock		8,856		10,323		11,477
Common stock issuable under the 2017 Notes		1,105		1,544		1,992
Common stock issuable under the 2018 and 2020 Notes		7,966		7,966		7,966
Unvested restricted stock units		2,618		1,743		1,244
Common stock potentially issuable for ESPP purchases		246		316		351
Common stock held by the NQDC		—		243		224
Total number of potentially issuable shares		20,791		22,135		23,254