Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Fiscal Year:
2015	$ 166,505,000
2016	144,575,000
2017	112,918,000
2018	82,375,000
2019	49,584,000
Thereafter	70,430,000
Total operating lease, future minimum payments due	626,387,000
Total rental expense for operating leases	218,000,000	206,200,000	194,900,000
Legal Proceedings
One-time cash sum to be paid to plaintiff		$ 8,500,000