Intangible Assets (Details) (USD $) In Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Sep. 30, 2010
Amortized intangible assets
Gross Carrying Amount	$ 1,024,063		$ 1,024,063		$ 882,592
Accumulated Amortization	538,406		538,406		489,661
Unamortized intangible assets
Unamortized intangible assets, Total	188,017		188,017		145,709
Intangible Assets (Textuals) [Abstract]
Intangible amortization expense	14,616	12,576	39,051	36,648
Core and developed technology [Member]
Amortized intangible assets
Gross Carrying Amount	706,917		706,917		580,709
Accumulated Amortization	306,149		306,149		269,926
Patents, trademarks, and other [Member]
Amortized intangible assets
Gross Carrying Amount	317,146		317,146		301,883
Accumulated Amortization	232,257		232,257		219,735
Acquired in process research and development [Member]
Unamortized intangible assets
Unamortized intangible assets, Total	185,300		185,300		143,000
Trademarks [Member]
Unamortized intangible assets
Unamortized intangible assets, Total	$ 2,717		$ 2,717		$ 2,709