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Seasonal Financing - Additional Information (Detail) - 2015 Credit Facility	3 Months Ended
	Mar. 31, 2016 USD ($)
Debt Instrument [Line Items]
Maturity date	Jun. 09, 2020
Debt-to-earnings before interest taxes depreciation amortization ratio maximum for covenant compliance	350.00%
Aggregate commitment under the credit facility	$ 1,600,000,000.00
Aggregate commitment under the credit facility, including the accordion feature	$ 1,850,000,000.00
Minimum
Debt Instrument [Line Items]
Commitment fee rate for unused commitments	0.08%
Maximum
Debt Instrument [Line Items]
Commitment fee rate for unused commitments	0.25%
Base Rate | Minimum
Debt Instrument [Line Items]
Interest rate margin for loans	0.00%
Base Rate | Maximum
Debt Instrument [Line Items]
Interest rate margin for loans	0.75%
LIBOR | Minimum
Debt Instrument [Line Items]
Interest rate margin for loans	0.88%
LIBOR | Maximum
Debt Instrument [Line Items]
Interest rate margin for loans	1.75%

X

- Definition

Debt to Earnings Before Interest Taxes Depreciation Amortization Ratio Maximum for Covenant Compliance

+ References

No definition available.

+ Details

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X

- Definition

Maximum borrowing capacity under the credit facility, including the accordion feature.

+ References

No definition available.

+ Details

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Balance Type:	credit
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X

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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X

- 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.

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X

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ 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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X

- 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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X

- 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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