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Fair Value of Financial Instruments (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012
Fair Value Disclosures [Abstract]
Other Assets Fair Value Disclosure	$ 0	$ 230,000,000
Long Term Debt	1,396,606,000	1,395,931,000
Debt Instrument Fair Value	$ 1,502,000,000	$ 1,584,700,000

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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