17. Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The calculation of basic and diluted net income (loss) per share for the three and six months ended June 30, 2017 and 2016 was as follows (in thousands, except per share amounts):

	Three Months Ended June 30,					Six Months Ended June 30,
	2017		2016			2017		2016
Basic net income (loss) per share
Numerator:
Net income (loss)	$	51,963	$	(11,415	)	$	61,092	$	184,221
Denominator:
Weighted-average common shares outstanding	104,338		102,287			104,221		102,070
Diluted net income (loss) per share
Denominator:
Weighted-average common shares outstanding	104,338		102,287			104,221		102,070
Effect of restricted and performance stock units and stock purchase plan shares	273		—			290		1,308
Weighted-average shares used in computing diluted net income per share	104,611		102,287			104,511		103,378
Net income (loss) per share:
Basic	$	0.50	$	(0.11	)	$	0.59	$	1.80
Diluted	$	0.50	$	(0.11	)	$	0.58	$	1.78

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table summarizes the potential shares of common stock that were excluded from the computation of diluted net income (loss) per share for the three and six months ended June 30, 2017 and 2016 as they would have had an anti-dilutive effect (in thousands):

	Three Months Ended June 30,		Six Months Ended June 30,
	2017	2016	2017	2016
Anti-dilutive shares	245	2,044	291	218