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The Company and Summary of Significant Accounting Policies - Revenue Recognition & Per Share (Details) - shares shares in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Revenue Recognition
Threshold purchase return percentage by distributors for slow, non-moving or obsolete inventory	10.00%
Specified period for return of threshold percentage of purchases by distributors for slow, non-moving or obsolete inventory	6 months
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	16,008	9,363
Options
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	6,659	8,772
Employee stock purchase plan
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	355	336
Unvested restricted common stock units
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	105	255
Convertible debt
Per Share Amounts
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	8,889

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-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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