Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Revenue:
License	$ 83,829	$ 81,431	$ 247,696	$ 231,119
Service	227,154	210,352	682,688	596,405
Total revenue	310,983	291,783	930,384	827,524
Costs and expenses:
Cost of license revenue	7,634	7,617	23,117	20,129
Cost of service revenue	85,220	82,792	261,172	238,112
Total cost of revenue	92,854	90,409	284,289	258,241
Gross margin	218,129	201,374	646,095	569,283
Sales and marketing	94,706	89,106	283,446	254,790
Research and development	53,260	51,103	162,829	155,676
General and administrative	29,851	31,882	88,957	80,078
Amortization of acquired intangible assets	5,103	4,753	15,444	12,873
Restructuring charges	4,126	0	24,928	0
Total operating expenses	187,046	176,844	575,604	503,417
Operating income	31,083	24,530	70,491	65,866
Interest and other (expense) income, net	(304)	(6,271)	(5,914)	(8,979)
Income before income taxes	30,779	18,259	64,577	56,887
Provision for income taxes	7,884	2,733	15,990	9,084
Net income	$ 22,895	$ 15,526	$ 48,587	$ 47,803
Earnings per share-Basic	$ 0.19	$ 0.13	$ 0.41	$ 0.41
Earnings per share-Diluted	$ 0.19	$ 0.13	$ 0.40	$ 0.39
Weighted average shares outstanding-Basic	119,042	118,214	118,584	117,622
Weighted average shares outstanding-Diluted	120,728	121,164	120,898	121,149