Additional Annual Payment to Term Loan Facility, Percentage of Excess Cash Flow

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- Definition

Availability in compliance with the fixed charge coverage ratio.

+ References

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- Definition

Availability percentage to maximum facility size.

+ References

No definition available.

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- Definition

Debt Instrument Leverage Ratio

+ References

No definition available.

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- Definition

Debt Instruments Maturity Date Month and Year

+ References

No definition available.

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- Definition

Line Of Credit Facility Additional Borrowing Capacity For Working Capital Needs

+ References

No definition available.

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- Definition

Line Of Credit Facility Increase Additional Borrowing Capacity

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No definition available.

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- Definition

Line of credit facility maximum borrowing capacity during the heating season.

+ References

No definition available.

+ Details

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- Definition

Maximum increase allowed without bank consulting.

+ References

No definition available.

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- Definition

Minimum Fixed Charge Coverage Ratio On Revolving Credit Facilities

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No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of the required periodic payments applied to principal.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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Long-Term Debt and Bank Facility Borrowings - Additional Information (Detail) - USD ($)		1 Months Ended	3 Months Ended
	Jul. 30, 2015	Jul. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2014
Debt Instrument [Line Items]
Hedging positions and payable amounts secured under credit facility				$ 2,500,000	$ 14,900,000
Letters of credit issued				54,800,000	52,800,000
Availability in compliance with the fixed charge coverage ratio				232,200,000	149,600,000
Third Amendment \| Subsequent Event
Debt Instrument [Line Items]
Non Seasonal maximum borrowing capacity under revolving credit facility	$ 300,000,000		$ 300,000,000
Maximum borrowing capacity (heating season December to April) under revolving credit facility	450,000,000		$ 450,000,000
Issuance of line of credit for working capital purposes	$ 100,000,000
Maturity date	2020-07
Additional revolving credit	$ 100,000,000
Facility size that can be increased without consulting bank group	$ 100,000,000
Term loan annual payment percentage	25.00%
Minimum fixed charge coverage ratio		110.00%
Availability percentage to maximum facility size		12.50%
Third Amendment \| December through April \| Subsequent Event
Debt Instrument [Line Items]
Commitment fee on the unused portion of the facility	0.30%
Third Amendment \| May through November \| Subsequent Event
Debt Instrument [Line Items]
Commitment fee on the unused portion of the facility	0.20%
Quarterly \| Third Amendment \| Subsequent Event
Debt Instrument [Line Items]
Term loan periodic payment	$ 2,500,000
Maximum \| Third Amendment \| Quarters ending June or September \| Subsequent Event
Debt Instrument [Line Items]
Senior secured leverage ratio		300.00%
Maximum \| Third Amendment \| Quarters ending December or March \| Subsequent Event
Debt Instrument [Line Items]
Senior secured leverage ratio		450.00%
Maximum \| Annually \| Third Amendment \| Subsequent Event
Debt Instrument [Line Items]
Term loan periodic payment	$ 15,000,000
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving credit facility outstanding				$ 0	$ 0
Revolving Credit Facility \| Third Amendment \| Subsequent Event
Debt Instrument [Line Items]
Senior secured term loan maturity period			5 years
$100 million Term Loan \| Third Amendment \| Subsequent Event
Debt Instrument [Line Items]
Senior secured term loan maturity period	5 years		5 years