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Stock-Based Compensation (Tables)
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6 Months Ended |
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Mar. 30, 2012
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| Share-based Compensation [Abstract] |
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| Schedule of Stock-Based Compensation Expense Included in Condensed Consolidated Statement of Operations |
| | | | | | | | | | | | | | | Fiscal Quarter Ended | Fiscal Year-to-Date Ended | | April 1,
2011 | March 30,
2012 | April 1,
2011 | March 30,
2012 | | (in thousands) | Stock-based compensation expense: | | | | Stock options | $ | 6,130 |
| $ | 5,995 |
| $ | 13,027 |
| $ | 12,054 |
| Restricted stock units | 4,595 |
| 5,880 |
| 8,721 |
| 11,144 |
| Employee stock purchase plan | 184 |
| 144 |
| 366 |
| 225 |
| Stock appreciation rights | (169 | ) | 44 |
| (114 | ) | 79 |
| Total stock-based compensation expense | $ | 10,740 |
| $ | 12,063 |
| $ | 22,000 |
| $ | 23,502 |
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| Schedule Of Stock-Based Compensation Expense |
| | | | | | | | | | | | | | | Fiscal Quarter Ended | Fiscal Year-to-Date Ended | | April 1,
2011 | March 30,
2012 | April 1,
2011 | March 30,
2012 | | (in thousands) | Stock-based compensation expense was classified as follows: | | | | Cost of products | $ | 168 |
| $ | 179 |
| $ | 314 |
| $ | 345 |
| Cost of services | 44 |
| 61 |
| 82 |
| 117 |
| Research and development | 2,611 |
| 2,968 |
| 4,934 |
| 5,632 |
| Sales and marketing | 3,367 |
| 4,004 |
| 6,363 |
| 7,719 |
| General and administrative | 4,550 |
| 4,851 |
| 10,307 |
| 9,689 |
| Total stock-based compensation expense | $ | 10,740 |
| $ | 12,063 |
| $ | 22,000 |
| $ | 23,502 |
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| Summary Of Stock Options Issued To Officers, Directors, And Employees Under 2000 Stock Incentive Plan And 2005 Stock Plan |
| | | | | | | | | | | | | Shares | Weighted Average Exercise Price | Weighted Average Remaining Contractual Life | Aggregate Intrinsic Value | | (in thousands) | | (in years) | (in thousands) | Stock options outstanding at September 30, 2011 | 5,801 |
| $ | 45.19 |
| | | Grants | 2,086 |
| 31.55 |
| | | Exercises | (181 | ) | 24.34 |
| | | Forfeitures and cancellations | (269 | ) | 51.49 |
| | | Stock options outstanding at March 30, 2012 | 7,437 |
| $ | 41.64 |
| 7.8 |
| $ | 34,766 |
| Stock options vested at March 30, 2012 and expected to vest | 7,143 |
| $ | 41.61 |
| 7.7 |
| $ | 33,732 |
| Stock options exercisable at March 30, 2012 | 3,355 |
| $ | 40.27 |
| 6.3 |
| $ | 19,438 |
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| Schedule Of Fair Value Of Stock-Based Awards Estimated Using Weighted-Average Assumptions |
| | | | | | | | | | | Fiscal Quarter Ended | Fiscal Year-to-Date Ended | | April 1,
2011 | March 30,
2012 | April 1,
2011 | March 30,
2012 | Expected life (in years) | 4.40 |
| 4.53 |
| 4.40 |
| 4.53 |
| Risk-free interest rate | 1.6 | % | 0.7 | % | 1.5 | % | 0.7 | % | Expected stock price volatility | 41.2 | % | 43.5 | % | 41.5 | % | 44.4 | % | Dividend yield | — |
| — |
| — |
| — |
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| Summary Of Restricted Stock Units Issued To Officers, Directors, And Employees Under 2005 Stock Incentive Plan |
| | | | | | | | Shares | Weighted Average Fair Value | | (in thousands) | | Non-vested at September 30, 2011 | 946 |
| $ | 53.71 |
| Granted | 1,082 |
| 32.08 |
| Vested | (336 | ) | 51.44 |
| Forfeitures and cancellations | (47 | ) | 48.00 |
| Non-vested at March 30, 2012 | 1,645 |
| $ | 40.11 |
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