Computation of (Loss) Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles net income (loss) and the weighted-average shares used in computing basic and diluted earnings per share in the respective periods (in thousands):



	Three month ended September 30,					Nine months ended September 30,
	2018		2017			2018		2017
Numerator:
Net income (loss) used for basic earnings per share	$	10,822	$	(5,525	)	$	41,704	$	(3,077	)
Interest expense on Convertible Senior Notes, net of tax	791		—			4,152		—
Net income (loss) used for diluted earnings per share, if-converted method	$	11,613	$	(5,525	)	$	45,856	$	(3,077	)

Basic weighted-average common shares outstanding	39,290		33,913			37,490		33,538
Potentially dilutive shares issuable from Convertible Senior Notes, if-converted	1,825		—			3,193		—
Potentially dilutive shares issuable from stock options and unvested RSUs	1,774		—			1,784		—
Diluted weighted-average common shares outstanding, if-converted	42,889		33,913			42,467		33,538
Potentially dilutive shares excluded from calculation due to anti-dilutive effect	—		—			161		1,121

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

The following table reconciles net income (loss) and the weighted-average shares used in computing basic and diluted earnings per share in the respective periods (in thousands):



	Three month ended September 30,					Nine months ended September 30,
	2018		2017			2018		2017
Numerator:
Net income (loss) used for basic earnings per share	$	10,822	$	(5,525	)	$	41,704	$	(3,077	)
Interest expense on Convertible Senior Notes, net of tax	791		—			4,152		—
Net income (loss) used for diluted earnings per share, if-converted method	$	11,613	$	(5,525	)	$	45,856	$	(3,077	)

Basic weighted-average common shares outstanding	39,290		33,913			37,490		33,538
Potentially dilutive shares issuable from Convertible Senior Notes, if-converted	1,825		—			3,193		—
Potentially dilutive shares issuable from stock options and unvested RSUs	1,774		—			1,784		—
Diluted weighted-average common shares outstanding, if-converted	42,889		33,913			42,467		33,538
Potentially dilutive shares excluded from calculation due to anti-dilutive effect	—		—			161		1,121