Ratio by which amount of shares available for grant are reduced for each restricted stock unit granted.

No definition available.

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- Definition

Ratio by which amount of shares available for grant are increased for each restricted stock unit granted.

+ References

No definition available.

+ Details

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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.

+ Details

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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

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option 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)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

+ Details

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- Definition

Net number of share options (or share units) granted during the 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)(iv)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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Stock Option And Other Benefit Plans - Share-Based Awards Available for Grant (Details) shares in Thousands		1 Months Ended	12 Months Ended				24 Months Ended
	Jun. 04, 2015	Jun. 30, 2015 shares	Dec. 31, 2016 shares	Dec. 31, 2015 shares	Dec. 31, 2014 shares	Dec. 31, 2013 shares	Jun. 03, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based awards granted			(10,347)	(1,659)	(1,344)
Share-based awards canceled			1,273	425	1,506
2007 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase in authorized shares		13,000				7,200
Shares available, ending balances			2,839
Pool share reduced for each share granted		1.32				1.39
2007 Equity Incentive Plan \| RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pool share reduced for each share granted	1.32						1.39
Pool share increased for each share canceled	1.32						1.39
2007 Equity Incentive and 2008 Equity Inducement Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available, beginning balances			9,684
Increase in authorized shares			6,000
Share-based awards granted			(16,720)
Share-based awards canceled			4,900
Shares available, ending balances			3,864	9,684