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Seasonal Financing - Narrative (Details) - Revolving Credit Facility - Credit Agreement - USD ($) | Dec. 20, 2017 | Mar. 31, 2018
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Debt Instrument [Line Items] |  |
Aggregate commitment under the credit facility | $ 1,600,000,000 |
Equity interest subject to a lien (as a percent) | 100.00% |
Voting stock subject to a lien (as a percent) | 65.00% |
Interest coverage ratio minimum for covenant compliance | 1.00 |
Excess availability under credit facility | $ 100,000,000 |
Availability threshold (as a percent) | 10.00% |
Threshold consecutive trading days | 30 days |
Outstanding borrowings under credit facility |  | $ 0
Minimum | LIBOR |  |
Debt Instrument [Line Items] |  |
Interest rate margin for loans (as a percent) | 1.25% |
Minimum | Base Rate |  |
Debt Instrument [Line Items] |  |
Interest rate margin for loans (as a percent) | 0.25% |
Maximum | LIBOR |  |
Debt Instrument [Line Items] |  |
Interest rate margin for loans (as a percent) | 3.00% |
Maximum | Base Rate |  |
Debt Instrument [Line Items] |  |
Interest rate margin for loans (as a percent) | 2.00% |

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- Definition Contingency under Credit Agreement, Availability Threshold, Percent + References No definition available. + Details
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- Definition Contingency under Credit Agreement, Excess Availability under Credit Facility + References No definition available. + Details
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- Definition Percentage of Equity Interest Subject to a Lien + References No definition available. + Details
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- Definition Percentage of Voting Stock Subject to a Lien + References No definition available. + Details
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- Definition Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, 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 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 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 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 + Details
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