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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 01, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Restricted Stock Unit Activity | Restricted stock unit activity for the nine months ended September 1, 2017 and the fiscal year ended December 2, 2016 was as follows (in thousands):
| 2017 |  | 2016
Beginning outstanding balance | 8,316 |  |  | 10,069 |
Awarded | 4,675 |  |  | 4,440 |
Released | (3,528 | ) |  | (5,471 | )
Forfeited | (615 | ) |  | (722 | )
Increase due to acquisition | 595 |  |  | — |
Ending outstanding balance | 9,443 |  |  | 8,316 |
Restricted Stock Units Outstanding | Information regarding restricted stock units outstanding at September 1, 2017 and September 2, 2016 is summarized below:
| Number of Shares (thousands) |  | Weighted Average Remaining Contractual Life (years) |  | Aggregate Intrinsic Value(*) (millions)
2017 |  |  |  |  |
Restricted stock units outstanding | 9,443 |  |  | 1.27 |  | $ | 1,464.2 |
Restricted stock units vested and expected to vest | 8,636 |  |  | 1.22 |  | $ | 1,339.1 |
2016 |  |  |  |  |  |  |
Restricted stock units outstanding | 8,398 |  |  | 1.25 |  | $ | 869.7 |
Restricted stock units vested and expected to vest | 7,597 |  |  | 1.19 |  | $ | 775.2 |
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(*) | The intrinsic value is calculated as the market value as of the end of the fiscal period. As reported by the NASDAQ Global Select Market, the market values as of September 1, 2017 and September 2, 2016 were $155.06 and $103.57, respectively.
Performance Share Activity | The following table sets forth the summary of performance share activity under our Performance Share Programs for the nine months ended September 1, 2017 and the fiscal year ended December 2, 2016 (in thousands):
| 2017 |  | 2016
| Shares Granted |  | Maximum Shares Eligible to Receive |  | Shares Granted |  | Maximum Shares Eligible to Receive
Beginning outstanding balance | 1,630 |  |  | 3,261 |  |  | 1,940 |  |  | 3,881 |
Awarded | 1,082 |  | (1 | ) | 1,040 |  |  | 1,206 |  | (2 | ) | 1,053 |
Achieved | (1,135 | ) |  | (1,147 | ) |  | (1,373 | ) |  | (1,387 | )
Forfeited | (43 | ) |  | (86 | ) |  | (143 | ) |  | (286 | )
Ending outstanding balance | 1,534 |  |  | 3,068 |  |  | 1,630 |  |  | 3,261 |
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(1) | Included in the 1.1 million shares awarded during the nine months ended September 1, 2017 were 0.6 million shares awarded for the final achievement of the 2014 Performance Share program. The remaining awarded shares were for the 2017 Performance Share Program.
(2) | Included in the 1.2 million shares awarded during the fiscal year ended December 2, 2016 were 0.7 million shares awarded for the final achievement of the 2013 Performance Share program. The remaining awarded shares were for the 2016 Performance Share Program.
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] | The expected life of the ESPP shares is the average of the remaining purchase periods under each offering period. The assumptions used to value employee stock purchase rights during the three and nine months ended September 1, 2017 and September 2, 2016 were as follows:
| Three Months |  | Nine Months
| 2017 |  | 2016 |  | 2017 |  | 2016
Expected life (in years) | 0.5 - 2.0 |  | 0.5 - 2.0 |  | 0.5 - 2.0 |  | 0.5 - 2.0
Volatility | 25% - 27% |  | 26% - 28% |  | 22% - 27% |  | 26% - 29%
Risk free interest rate | 1.12% - 1.41% |  | 0.37% - 0.59% |  | 0.62% - 1.41% |  | 0.37% - 1.06%
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs | Total stock-based compensation costs included in our condensed consolidated statements of income for the three months ended September 1, 2017 and September 2, 2016 were as follows (in thousands):
|  | 2017 |  | 2016
Income Statement Classifications |  | Option Grants and Stock Purchase Rights |  | Restricted Stock Units and Performance Share Awards |  | Option Grants and Stock Purchase Rights |  | Restricted Stock Units and Performance Share Awards
Cost of revenue—subscription | $ | 628 |  |  | $ | 3,633 |  |  | $ | 333 |  |  | $ | 1,554 |
Cost of revenue—services and support | 1,626 |  |  | 2,409 |  |  | 1,221 |  |  | 1,861 |
Research and development | 4,608 |  |  | 43,243 |  |  | 3,336 |  |  | 26,388 |
Sales and marketing | 4,658 |  |  | 36,064 |  |  | 3,940 |  |  | 27,798 |
General and administrative | 1,140 |  |  | 19,033 |  |  | 976 |  |  | 17,097 |
Total | $ | 12,660 |  |  | $ | 104,382 |  |  | $ | 9,806 |  |  | $ | 74,698 |
Total stock-based compensation costs included in our condensed consolidated statements of income for the nine months ended September 1, 2017 and September 2, 2016 were as follows (in thousands):
|  | 2017 |  | 2016
Income Statement Classifications |  | Option Grants and Stock Purchase Rights |  | Restricted Stock Units and Performance Share Awards |  | Option Grants and Stock Purchase Rights |  | Restricted Stock Units and Performance Share Awards
Cost of revenue—subscription | $ | 1,899 |  |  | $ | 10,467 |  |  | $ | 1,119 |  |  | $ | 5,115 |
Cost of revenue—services and support | 4,850 |  |  | 7,151 |  |  | 4,087 |  |  | 5,494 |
Research and development | 12,884 |  |  | 119,068 |  |  | 10,961 |  |  | 81,280 |
Sales and marketing | 13,832 |  |  | 103,982 |  |  | 12,953 |  |  | 85,123 |
General and administrative | 3,623 |  |  | 56,972 |  |  | 3,423 |  |  | 53,049 |
Total | $ | 37,088 |  |  | $ | 297,640 |  |  | $ | 32,543 |  |  | $ | 230,061 |

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