Stock Based Compensation Included in Consolidated Statements of Operations (Detail) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	$ 33,788	$ 28,094	$ 109,505	$ 72,868
Cost of Product and Licensing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	2	7	29	25
Cost of Professional Services and Hosting
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	5,764	2,612	20,514	8,173
Cost of Maintenance and Support
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	518	165	1,545	582
Research and Development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	5,280	2,282	18,188	6,731
Sales and Marketing
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	10,341	12,516	32,748	29,813
General and Administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock based compensation	$ 11,883	$ 10,512	$ 36,481	$ 27,544