Commitments And Contingencies (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2011	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009
Rental expense to continuing operations		$ 20,000,000	$ 19,500,000	$ 19,400,000
Minimum annual rental commitments		59,300,000
Expected aggregate cost of long-term agreement		33,000,000
Tentative financial settlement	42,300,000
Mediation settlement charge		47,300,000	(21,200,000)
Payment on settlement		5,000,000
Reserve against potential claims		21,200,000
Maximum [Member]
Deductibles and self insured retentions		1,500,000
Damages being sought		1,500,000,000
Minimum [Member]
Deductibles and self insured retentions		150,000
Damages being sought		$ 947,000,000