Basic and Diluted Net Income (Loss) per Share (Tables)

3 Months Ended

Mar. 31, 2015

Basic and Diluted Net Income (Loss) per Share

Schedule of components of basic and diluted net income (loss) per share

	Three Months Ended March 31,
	2015		2014
Net income (loss)	$	12,904	$	(7,102	)
Weighted average common shares outstanding	27,213		21,824
Effect of dilutive securities:
Stock options and restricted stock units	1,552		—
Warrants	7,382		—
Convertible 2.5% senior notes	2,098		—
Shares used in calculating dilutive net income (loss) per share	38,245		21,824
Net income (loss) per share:
Basic	$	0.47	$	(0.33	)
Diluted	$	0.39	$	(0.33	)

Schedule of anti-dilutive securities from computation of diluted net Income (loss) per share

	Three Months Ended March 31,
	2015	2014
Options to purchase shares of common stock	856	3,335
Shares of common stock issuable upon the vesting of restricted stock units	298	481
Warrants	—	7,382
Total	1,154	11,198