Share Based Compensation Arrangement by Share Based Payment Award, Award Expiration Period

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Award Term

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No definition available.

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Percentage On First Anniversary

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Fair Value

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Maximum Value of Shares Per Employee

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No definition available.

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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

Unrecognized cost of unvested share-based compensation awards.

+ References

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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.

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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=56944662&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.

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- Definition

General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy.

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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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

The highest percentage of annual salary that an employee is permitted to utilize with respect to the 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
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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).

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- 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.

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- 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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- Definition

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

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- Definition

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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- Definition

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

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No definition available.

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Share-Based Compensation - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Oct. 31, 2012	Nov. 30, 2006	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Compensation cost for stock-based payment arrangements			$ 27,204,000	$ 18,147,000	$ 11,111,000
Unrecognized compensation costs related to unvested stock options and unvested restricted stock units issued			$ 75,200,000
Remaining weighted-average period for unrecognized compensation costs			3 years
Weighted-average fair value of outstanding stock options			$ 4.96	$ 5.10	$ 4.09
Weighted-average fair value of the options granted			$ 5.94	$ 8.12	$ 5.72
Total intrinsic value of options exercised			$ 11,100,000	$ 24,000,000	$ 41,800,000
Total intrinsic value of outstanding stock options			61,600,000
Total intrinsic value of exercisable stock options			37,100,000
2006 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares of common stock reserved		18,426,332
Term of stock options awarded		10 years
Vesting period		4 years
Percentage of grant vesting on the first anniversary date		25.00%
2012 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	4 years
Percentage of grant vesting on the first anniversary date	25.00%
Shares available for issuance under the 2006 Plan added to the shares reserved under the 2012 Plan	4,902,708
Authorized shares of common stock	4,200,000
Term of stock options awarded	10 years
ESPP
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Authorized shares of common stock	2,000,000
Compensation cost for stock-based payment arrangements			$ 600,000	$ 600,000
ESPP description			The ESPP allows substantially all full-time and part-time employees, excluding members of senior management, to acquire shares of our common stock through payroll deductions over six month offering periods.
Purchases limit, percentage of employee's salary	15.00%
Maximum value of stock purchases per calendar year	$ 25,000
Common stock issued			457,409
ESPP \| On the grant date
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Per share purchase price as percentage of fair market value of a share of common stock	85.00%
ESPP \| On the last day of the offering period
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Per share purchase price as percentage of fair market value of a share of common stock	85.00%