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Partnership Organization (Details Textual 1) (USD $) In Thousands, unless otherwise specified			9 Months Ended
	Jun. 30, 2012	Sep. 30, 2011	Jun. 30, 2012 Senior Notes [Member]
Partnership Organization (Textual) [Abstract]
Outstanding senior notes	$ 124,333	$ 124,263	$ 125,000
Interest on senior notes			8.875%
Maturity of senior notes			2017

X

- Definition

Maturity of debt instrument.

+ References

No definition available.

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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