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Schedule II - Valuation And Qualifying Accounts | 12 Months Ended
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Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II - Valuation And Qualifying Accounts | SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS Murphy USA Inc. Valuation Accounts and Reserves
(Millions of dollars) | Balance at January 1, |  | Charged (Credited) to Expense |  | Deductions |  | Balance at December 31,
2020 |  |  |  |  |  |  |
Deducted from assets accounts |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 1.2 |  |  | — |  |  | (1.1) |  |  | $ | 0.1 |
2019 |  |  |  |  |  |  |
Deducted from assets accounts |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 1.1 |  |  | 0.1 |  |  |  |  | $ | 1.2 |
2018 |  |  |  |  |  |  |
Deducted from assets accounts |  |  |  |  |  |  |
Allowance for doubtful accounts | $ | 1.1 |  |  | 0.5 |  |  | (0.5) |  |  | $ | 1.1 |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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