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
|
|
|
|