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Long-Term Debt (Schedule Of Redemption Prices Of Senior Notes) (Details)	9 Months Ended
	Jun. 30, 2018
Long-Term Debt [Abstract]
2018	102.875%
2019	101.917%
2020	100.958%
2021 and thereafter	100.00%

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Senior Notes Maturities Repayments Of Principal In Rolling Year One Percent

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Senior Notes Maturities Repayments Of Principal In Rolling Year Thereafter, Percent

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- Definition

Senior Notes Maturities Repayments Of Principal In Rolling Year Three, Percent

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Senior notes maturities repayments of principal in rolling year two percent.

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