Stock‑Based Compensation (Details) - Jun. 30, 2015 - shares	Total
2007 Plan
Stock Based Compensation
Shares reserved for issuance	15,999,289
2015 Plan
Stock Based Compensation
Shares reserved for issuance	3,451,495
Additional shares reserved for issuance	9,890,310
Employee and non-employee stock options \| 2007 Plan
Stock Based Compensation
Shares exercised and unvested	1,500,000
Employee and non-employee stock options \| 2007 Plan \| Vesting Tranche One
Stock Based Compensation
Vesting (as a percent)	25.00%
Employee and non-employee stock options \| 2007 Plan \| Vesting Tranche Two
Stock Based Compensation
Vesting (as a percent)	75.00%
Vesting period	36 months

Additional number of common shares reserved for future issuance.

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- Definition

Represents the number of shares exercised and unvested under the plan.

+ References

No definition available.

+ Details

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- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

+ References

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