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The Company and Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Loss Per Share (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net income (loss) per share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,415	1,361	2,415	1,594
Options
Net income (loss) per share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	144	336	144	659
Employee stock purchase plan
Net income (loss) per share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				35
RSU's
Net income (loss) per share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		52		11
Convertible debt
Net income (loss) per share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	2,271	973	2,271	889

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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