Intangible Assets (Details) (USD $) In Thousands	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Amortized intangible assets
Gross Carrying Amount	$ 1,146,668	$ 882,592
Accumulated Amortization	536,102	489,661
Unamortized intangible assets
Unamortized intangible assets, Total	187,969	145,709
Intangible Assets (Textuals) [Abstract]
Intangible amortization expense	55,151	48,399	47,066
Future Amortization Expense, 2012	72,536
Future Amortization Expense, 2013	74,412
Future Amortization Expense, 2014	71,849
Future Amortization Expense, 2015	69,745
Future Amortization Expense, Year Five	64,963
Core and developed technology [Member]
Amortized intangible assets
Gross Carrying Amount	685,191	580,709
Accumulated Amortization	304,292	269,926
Product Rights [Member]
Amortized intangible assets
Gross Carrying Amount	152,140	0
Accumulated Amortization	1,268	0
Patents, trademarks, and other [Member]
Amortized intangible assets
Gross Carrying Amount	309,337	301,883
Accumulated Amortization	230,542	219,735
Acquired in process research and development [Member]
Unamortized intangible assets
Unamortized intangible assets, Total	185,300	143,000
Trademarks [Member]
Unamortized intangible assets
Unamortized intangible assets, Total	$ 2,669	$ 2,709