Long-Lived Assets (Summary Of Gross Carrying Amounts And Accumulated Amortization Of Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Jun. 30, 2011	Sep. 30, 2010
Gross Carrying Amount	$ 323,171	$ 321,805
Accumulated Amortization	153,465	138,434
CCP Contracts [Member]
Estimated useful lives, minimum, in years	8
Estimated useful lives, maximum, in years	20
Gross Carrying Amount	117,690	117,690
Accumulated Amortization	56,961	51,912
Customer Relationships [Member]
Estimated useful lives, minimum, in years	5
Estimated useful lives, maximum, in years	15
Gross Carrying Amount	77,914	77,603
Accumulated Amortization	36,974	32,537
Trade Names [Member]
Estimated useful lives, minimum, in years	5
Estimated useful lives, maximum, in years	20
Gross Carrying Amount	67,890	67,425
Accumulated Amortization	22,734	20,114
Patents and Patented Technologies [Member]
Estimated useful lives, minimum, in years	4
Estimated useful lives, maximum, in years	19
Gross Carrying Amount	54,692	53,426
Accumulated Amortization	34,968	31,044
Other Intangible Assets [Member]
Estimated useful lives, minimum, in years	2
Estimated useful lives, maximum, in years	17
Gross Carrying Amount	4,985	5,661
Accumulated Amortization	$ 1,828	$ 2,827