Employee Share Purchase Plan, Yearly Increase in Shares Available for Grant, Percent

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- Definition

Minimum percentage of fair value of grant.

+ References

No definition available.

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- Definition

Percentage Of Fair Market Value Of Common Stock On Grant Date

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No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Offering Interval

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Offering Period

+ References

No definition available.

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- 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)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Publisher FASB
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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, 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 50
-Paragraph 2
-Subparagraph (h)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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
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-Paragraph 2
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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)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, 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
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-Paragraph 2
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- Definition

Discount rate from fair value on offering date that participants pay for shares.

+ References

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

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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
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-Paragraph 2
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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.

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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
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-Paragraph 2
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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

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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
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-Paragraph 2
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- Definition

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

+ References

No definition available.

+ Details

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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands					1 Months Ended					12 Months Ended
	Nov. 10, 2015	Nov. 25, 2014	Oct. 01, 2005	Sep. 30, 2005	May 31, 2011	May 31, 2010	Jun. 30, 2004	Sep. 30, 2001	May 31, 2000	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense not yet recognized										$ 241,037
Expected recognized period (in years)										2 years 18 days
Stock-based compensation expense										$ 156,148	$ 133,633	$ 117,990
Capitalized stock-based compensation expense										$ 4,242	2,987	3,958
Bit-isle
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense											1,191
2000 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant										3,001,796
Number of shares authorized										16,636,172
Percentage of fair market value of common stock on the grant date					85.00%				100.00%
Stock option expiration from grant date			7 years	10 years
Vesting period (in years)						4 years
2000 Director Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant										505,646
Number of shares authorized										594,403
Percentage of fair market value of common stock on the grant date									100.00%
Stock option expiration from grant date									10 years
2001 Supplemental Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant										260,498
Number of shares authorized										1,494,275
Stock option expiration from grant date			7 years	10 years
Vesting period (in years)								4 years
Minimum percentage of fair value of grant								85.00%
Common stock employee purchase plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant										3,427,867
Number of shares authorized							500,000
Number of additional shares authorized	9,020	3,197
Yearly increase in shares available for grant (percent)							2.00%
Percentage of purchase price reductions										15.00%
Offering period (in months)							24 months
Offering interval (in months)							6 months
Purchase discount from market price (percent)							85.00%
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock units vested and released, net										$ 227,359	$ 157,605	$ 141,980