Subsequent Events	9 Months Ended
Jun. 30, 2012
Subsequent Events [Abstract]
Subsequent Events	10) Subsequent Events Quarterly Distribution Declared In July 2012, we declared a quarterly distribution of $0.0775 per unit, or $0.31 per unit on an annualized basis, on all common units with respect to the third quarter of fiscal 2012 payable on August 7, 2012 to holders of record on July 30, 2012. In accordance with our Partnership Agreement, the amount of distributions in excess of the minimum quarterly distribution of $0.0675, are distributed 90% to the holders of common units and 10% to the holders of the General Partner units (until certain distribution levels are met), subject to the management incentive compensation plan. As a result, $4.7 million will be paid to the common unit holders, $0.056 million to the General Partner (including $0.034 million of incentive distribution as provided in our Partnership Agreement) and $0.034 million to management pursuant to the management incentive compensation plan which provides for certain members of management to receive incentive distributions that would otherwise be payable to the General Partner. Common Unit Repurchase Plan (“Plan III”) Authorized In July 2012, the Board of Directors authorized the repurchase of up to 3.0 million of the Partnership’s common units (“Plan III”). The authorized common unit repurchases may be made from time-to-time in the open market, in privately negotiated transactions or in such other manner deemed appropriate by management. There is no guarantee of the exact number of units that will be purchased under the program and the Partnership may discontinue purchases at any time. The program does not have a time limit. The Partnership’s repurchase activities take into account SEC safe harbor rules and guidance for issuer repurchases. All of the common units purchased in the repurchase program will be retired. Amendment to Management Incentive Compensation Plan and Amendment to Partnership Agreement In July 2012, the Partnership adopted certain amendments (the “Plan Amendments”) to the Partnership’s Management Incentive Compensation Plan (the “Plan”), and as amended, the Plan has been amended and restated in its entirety. Under the Plan Amendments, the number and identity of the Plan participants and their participation interests in the Plan have been frozen at the current levels. In addition, under the Plan Amendments, the plan benefits (to the extent vested) may be transferred upon the death of a participant to his or her heirs. A participant’s vested percentage of his or her plan benefits will be 100% during the time a participant is an employee or consultant of the Partnership. Following the termination of such positions, a participant’s vested percentage shall be equal to 20% for each full or partial year of employment or consultation with the Partnership starting with the fiscal year ending September 30, 2012 (33 1/3% in the case of the Partnership’s chief executive officer). The Partnership also entered into Amendment No. 3 dated as of July 19, 2012 to its Second Amended and Restated Agreement of Limited Partnership (the “Partnership Agreement”) in order to give effect to the Plan Amendments. Weather Hedge Contract In July 2012, the Partnership entered into a weather hedge contract for the fiscal years ending September 30, 2013, 2014 and 2015 with Swiss Re Financial Products Corporation under which we are entitled to receive a payment of $35,000 per heating degree-day shortfall, when the total number of heating degree-days in the period covered is less than 92.5% of the ten year average, the Payment Threshold. The hedge covers the period from November 1 through March 31 taken as a whole for each respective fiscal year and has a maximum payout of $12.5 million for each fiscal year.

Subsequent Events

9 Months Ended

Jun. 30, 2012

10) Subsequent Events

Quarterly Distribution Declared

In July 2012, we declared a quarterly distribution of $0.0775 per unit, or $0.31 per unit on an annualized basis, on all common units with respect to the third quarter of fiscal 2012 payable on August 7, 2012 to holders of record on July 30, 2012. In accordance with our Partnership Agreement, the amount of distributions in excess of the minimum quarterly distribution of $0.0675, are distributed 90% to the holders of common units and 10% to the holders of the General Partner units (until certain distribution levels are met), subject to the management incentive compensation plan. As a result, $4.7 million will be paid to the common unit holders, $0.056 million to the General Partner (including $0.034 million of incentive distribution as provided in our Partnership Agreement) and $0.034 million to management pursuant to the management incentive compensation plan which provides for certain members of management to receive incentive distributions that would otherwise be payable to the General Partner.

Common Unit Repurchase Plan (“Plan III”) Authorized

In July 2012, the Board of Directors authorized the repurchase of up to 3.0 million of the Partnership’s common units (“Plan III”). The authorized common unit repurchases may be made from time-to-time in the open market, in privately negotiated transactions or in such other manner deemed appropriate by management. There is no guarantee of the exact number of units that will be purchased under the program and the Partnership may discontinue purchases at any time. The program does not have a time limit. The Partnership’s repurchase activities take into account SEC safe harbor rules and guidance for issuer repurchases. All of the common units purchased in the repurchase program will be retired.

Amendment to Management Incentive Compensation Plan and Amendment to Partnership Agreement

In July 2012, the Partnership adopted certain amendments (the “Plan Amendments”) to the Partnership’s Management Incentive Compensation Plan (the “Plan”), and as amended, the Plan has been amended and restated in its entirety. Under the Plan Amendments, the number and identity of the Plan participants and their participation interests in the Plan have been frozen at the current levels. In addition, under the Plan Amendments, the plan benefits (to the extent vested) may be transferred upon the death of a participant to his or her heirs. A participant’s vested percentage of his or her plan benefits will be 100% during the time a participant is an employee or consultant of the Partnership. Following the termination of such positions, a participant’s vested percentage shall be equal to 20% for each full or partial year of employment or consultation with the Partnership starting with the fiscal year ending September 30, 2012 (33 1/3% in the case of the Partnership’s chief executive officer). The Partnership also entered into Amendment No. 3 dated as of July 19, 2012 to its Second Amended and Restated Agreement of Limited Partnership (the “Partnership Agreement”) in order to give effect to the Plan Amendments.

Weather Hedge Contract

In July 2012, the Partnership entered into a weather hedge contract for the fiscal years ending September 30, 2013, 2014 and 2015 with Swiss Re Financial Products Corporation under which we are entitled to receive a payment of $35,000 per heating degree-day shortfall, when the total number of heating degree-days in the period covered is less than 92.5% of the ten year average, the Payment Threshold. The hedge covers the period from November 1 through March 31 taken as a whole for each respective fiscal year and has a maximum payout of $12.5 million for each fiscal year.