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Stock-based Compensation (Schedule of Classification of Compensation Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended
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Dec. 30, 2017 | Dec. 31, 2016
Total stock-based compensation expense | $ 18,331 | $ 17,988
Cost of license and subscription revenue |  |
Total stock-based compensation expense | 413 | 293
Cost of support revenue |  |
Total stock-based compensation expense | 808 | 1,144
Cost of professional services revenue |  |
Total stock-based compensation expense | 1,706 | 1,457
Sales and marketing |  |
Total stock-based compensation expense | 4,879 | 3,621
Research and development |  |
Total stock-based compensation expense | 2,960 | 2,997
General and administrative |  |
Total stock-based compensation expense | $ 7,565 | $ 8,476

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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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