Employee Stock Purchase Plan Offering Period Description

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- Definition

Employee stock purchase plan purchase limits.

+ References

No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Shares Reserved For Future Issuance Increase Percentage

+ References

No definition available.

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- Definition

Description of automatic increase in shares reserved for future issuance.

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Consecutive Trading Days

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Canceled Shares Available for Reallocation

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Target Price Measurement Period

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ 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 (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average remaining contractual term for equity-based awards excluding options, 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 (e)(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

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

+ References

No definition available.

+ Details

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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

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

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- Definition

The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

+ 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 (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Percentage of vesting of share-based compensation awards.

+ 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

Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options.

+ 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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Equity Award Plans - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions			1 Months Ended	6 Months Ended	12 Months Ended
	Jan. 01, 2016	Jun. 10, 2015	Jun. 30, 2016	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	4,851,535
Options granted to employees and consultants				672,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				3,605,000
Total compensation expense related to unvested awards granted, not yet recognized			$ 33.1	$ 33.1
Total compensation expense related to unvested awards granted, not yet recognized weighted-average period for recognition				2 years 7 months 2 days
Share Price			$ 6.47	$ 6.47
Aggregated Intrinsic Value			$ 41.1	$ 41.1
Weighted Average Remaining Service Period (in years)				2 years 9 months 7 days
2014 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant			631,718	631,718		542,030
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized			4,000,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans				552,554
Description of automatic increase in shares reserved for future issuance				On the first day of each fiscal year, starting with January 1, 2015, the number of shares in the reserve will increase by the least of (i) 3,500,000 shares, (ii) 1% of the outstanding shares of our common stock on the last day of the immediately preceeding fiscal year, or (iii) such other amount as determined by our board of directors
Purchase limit of 2014 ESPP description				Purchase limits of 1,500 shares during each six month purchase period or $25,000 worth of stock for each calendar year
Offering period description				Each offering period will be approximately twenty-four months in duration, starting on the first trading day on or after May 21 and November 21 of each year, except for the first offering period, which commenced on March 21, 2014 and will end on the last trading day on or before May 20, 2016
Performance-Based
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				547,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage				25.00%
Stock awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				3,058,000
Market Performance-Based Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				0		40,000	540,000
Share-based Compensation Arrangement by Share-based Payment Award, Consecutive Trading Days						20 days
Share-based Compensation Arrangement by Share-based Payment Award, Target Price Measurement Period						4 years
Reallocated 2008 Equity Plan Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Canceled Shares Available for Reallocation				189,016
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	1,640,324
2014 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	642,242
Two Thousand Fourteen Stock Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available for future grant			4,553,483	4,553,483		3,364,304
Percentage of outstanding shares of common stock	5.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	3,211,211
Options granted to employees and consultants				672,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period				3,604,561
Two Thousand Fourteen Stock Incentive Plan [Member] \| Stock options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Description of automatic increase in shares reserved for future issuance				On the first day of each fiscal year, starting with January 1, 2015, the number of shares in the reserve will increase by the least of (i) 8,000,000 shares, (ii) 5% of the outstanding shares of common stock on the last day of our immediately preceding fiscal year, or (iii) such other amount as determined by our board of directors.
Maximum \| Reallocated 2008 Equity Plan Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Canceled Shares Available for Reallocation		8,310,566
Forecast \| Maximum \| Two Thousand Fourteen Stock Incentive Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional shares reserved for future issuance					8,000,000
Percentage of outstanding shares of common stock					5.00%
Forecast \| Maximum \| 2014 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of outstanding shares of common stock					1.00%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized					3,500,000