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v3.20.2

Seasonal Financing (Details) |  | 1 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Dec. 20, 2017 USD ($) trading_day | Oct. 21, 2020 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($)
Debt Instrument [Line Items] |  |  |  |  |
Short-term borrowings |  |  | $ 400,000,000 | $ 0 | $ 230,000,000
Subsequent Event |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Short-term borrowings |  | $ 76,300,000 |  |  |
Repayments of short-term borrowings |  | $ 323,700,000 |  |  |
Credit Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Outstanding letters of credit |  |  | 13,000,000 | $ 55,000,000 | $ 65,000,000
Revolving Credit Facility | Credit Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Aggregate commitment under the credit facility |  |  | 1,600,000,000 |  |
Interest coverage ratio minimum for covenant compliance | 1.00 |  |  |  |
Excess availability under credit facility | $ 100,000,000 |  | $ 100,000,000 |  |
Availability threshold (as a percent) | 10.00% |  |  |  |
Threshold consecutive trading days | trading_day | 30 |  |  |  |
Revolving Credit Facility | Credit Agreement | Minimum | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate margin for loans (as a percent) |  |  | 1.25% |  |
Revolving Credit Facility | Credit Agreement | Minimum | Base Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate margin for loans (as a percent) |  |  | 0.25% |  |
Revolving Credit Facility | Credit Agreement | Maximum | LIBOR |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate margin for loans (as a percent) |  |  | 2.75% |  |
Revolving Credit Facility | Credit Agreement | Maximum | Base Rate |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate margin for loans (as a percent) |  |  | 1.75% |  |
Revolving Credit Facility, Asset Based | Credit Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Aggregate commitment under the credit facility |  |  | $ 1,310,000,000 |  |
Revolving Credit Facility, Secured | Credit Agreement |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Aggregate commitment under the credit facility |  |  | $ 294,000,000.0 |  |

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