Employee Stock Purchase Plan Annual Increase In Reserved Shares

No definition available.

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Period Type:	duration

- Definition

Percentage Of Common Stock Shares Outstanding

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Percentage Of Share Reserved For Share Based Compensation

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Share Based Compensation Arrangement Restricted Stock Units Number Of Units Expected To Vest

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Shares Reserved For Employee Stock Purchase Plan

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Stock Options Granted Vesting Rate

+ References

No definition available.

+ Details

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- Definition

Tranche Achievement Date

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Value of Restricted Stock Units Vested

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Weighted average grant date fair value of restricted stock units expected to vest.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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-Name Accounting Standards Codification
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-Paragraph 2
-Subparagraph (h)(1)(i)
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Balance Type:	debit
Period Type:	duration

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

+ Details

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Period Type:	instant

- Definition

Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

+ 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 (j)
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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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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

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)
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- Definition

Unrecognized cost of unvested options awarded to employees as compensation.

+ References

No definition available.

+ Details

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

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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)
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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ 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 (d)(2)
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Balance Type:	debit
Period Type:	duration

- 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.

+ Details

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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)
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Period Type:	instant

- Definition

Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

+ 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 (d)(2)
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Balance Type:	debit
Period Type:	duration

- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(1)
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Balance Type:	na
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- Definition

Number of options outstanding, including both vested and non-vested options.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 2
-Subparagraph (c)(1)(i)-(ii)
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Balance Type:	na
Period Type:	instant

- 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)
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- Definition

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

+ References

No definition available.

+ Details

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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)
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- Definition

Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ 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(28))
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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Stock Split
-URI http://asc.fasb.org/extlink&oid=6525746

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Stock Award Plans - Additional Information (Detail)		1 Months Ended	12 Months Ended
Stock Award Plans - Additional Information (Detail)	Mar. 01, 2017	Mar. 31, 2004 shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	May 23, 2013 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share reserve \| shares				140,000	140,000
Share of common stock outstanding		1.00%
Shares sold to employees \| shares			104,758	64,245	61,015
Shares purchased under ESPP \| shares			43,672
Stock option grants vest exercisable rate			25.00%
Vesting period			4 years
Options to purchase common stock \| shares			5,530,256	3,955,845
Stock based compensation expense			$ 5,135,000	$ 8,725,000	$ 48,622,000
Weighted average grant date fair value of the stock options granted \| $ / shares			$ 3.05	$ 12.80	$ 23.80
Total intrinsic value of options exercised			$ 100,000	$ 6,200,000	$ 14,900,000
Cash received from the exercise of options			$ 500,000	$ 3,300,000	$ 11,000,000
Weighted-average remaining contractual term			5 years 3 months 22 days	5 years 2 months 19 days	2 years 11 months 5 days
Restricted stock units expected to vest \| shares			629,424
Weighted average grant date fair value \| $ / shares			$ 8.60
Total intrinsic value of restricted stock units expected to vest			$ 2,000,000
Total intrinsic value of restricted stock units vested			600,000	$ 5,200,000	$ 62,700,000
Fair value of restricted stock units vested			$ 2,600,000	5,500,000	36,400,000
Weighted average vesting period for unrecognized compensation cost			2 years 10 months 24 days
Stock compensation expense			$ 5,135,000	8,725,000	$ 48,622,000
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock split of common stock	0.2
Employee Severance \| Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense				$ 1,600,000
Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock vesting rate			25.00%
Unrecognized compensation cost related to options			$ 300,000
Tranche achievement date			2017-12
Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non vested stock options			$ 0
Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non vested stock options			0
Tranche Four
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non vested stock options			$ 0
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved under ESPP		10.00%
Options granted expiry term			10 years
Consultant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options to purchase common stock \| shares			100,697
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			36 months
Unrecognized compensation cost related to non vested stock options			$ 4,000,000
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period			4 years
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to non vested stock options			$ 4,800,000
2013 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity incentive plan, shares \| shares						4,300,000
Options to purchase common stock \| shares			3,399,245
Employee Stock Purchase Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance \| shares		400,000	445,782
Share reserve automatic increase each year \| shares		140,000