Equity-Based Compensation - Plan Information (Details)		12 Months Ended
May. 21, 2015 shares	Dec. 31, 2015 item shares
Equity compensation plans
Number of equity compensation plans \| item		4
Equity Incentive Plan 2007
Equity compensation plans
Shares authorized for issuance		6,215,325
Additional shares authorized for issuance	1,700,000
Remaining number of shares available for future grants		2,231,795
Equity Incentive Plan 2007 \| Employee and Non Employee Stock Option \| Minimum
Equity compensation plans
Expiration term		7 years
Equity Incentive Plan 2007 \| Employee and Non Employee Stock Option \| Maximum
Equity compensation plans
Expiration term		10 years
Stock 2000 Plan \| Employee and Non Employee Stock Option
Equity compensation plans
Expiration term		10 years
Lumara 2013 Plan
Equity compensation plans
Shares authorized for issuance		200,000
Remaining number of shares available for future grants		39,984
Lumara 2013 Plan \| Employee and Non Employee Stock Option
Equity compensation plans
Expiration term		10 years
2015 ESPP
Equity compensation plans
Shares authorized for issuance	200,000
Annual maximum percentage of employee compensation available for ESPP share purchases (as a percent)	10.00%
Purchase price per share as a percentage of fair market value of common stock on the first or last day of the plan period	85.00%
Shares issued		0

Represents the number of equity compensation plans.

No definition available.

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- Definition

Represents the maximum percentage of an employee's compensation that can be deducted and used to purchase shares under an Employee Stock Purchase Plan.

+ References

No definition available.

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- Definition

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+ References

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- Definition

Number of additional shares authorized for issuance under an established share-based compensation plan.

+ References

No definition available.

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ 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)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Period from grant date that an equity-based award expires, 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)(2)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
-Article 5

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