Fair Value of Financial Instruments (Details) (Recurring, USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Level 2 \| Interest rate swaps
Fair value measurements
Derivative Assets (liabilities) (included in other current liabilities)	$ (5,952)	$ (7,751)
Derivative Assets (liabilities) (included in other liabilities)	(2,004)	(5,777)
Level 3 \| Cross currency swaps
Fair value measurements
Derivative Assets (liabilities) (included in other current liabilities)	(2,841)	(3,818)
Derivative Assets (liabilities) (included in other assets)	426
Derivative Assets (liabilities) (included in other liabilities)	$ (220)	$ (21,044)

Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments which are expected to exist longer than one year or beyond the normal operating cycle, if longer, net of the effects of master netting arrangements.

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+ Details

- Definition

Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of within a year or the normal operating cycle, if longer, net of the effects of master netting arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Glossary Current Liabilities

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+ Details

- Definition

Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, and which are expected to be extinguished or otherwise disposed of after one year or beyond the normal operating cycle, if longer, net of the effects of master netting arrangements.

+ References

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-Name Accounting Research Bulletin (ARB)

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+ Details