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Accounts Payable and Accrued Expenses | 12 Months Ended
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Dec. 31, 2021
Payables and Accruals [Abstract] |
Accounts Payable and Accrued Expenses | Accounts Payable and Accrued Expenses Accounts payable and accrued expenses consisted of the following:
| December 31,
| 2021 |  | 2020
| (Dollars in millions)
Trade accounts payable | $ | 201.7 |  |  | $ | 146.3 |
Accrued payroll and related benefits | 170.5 |  |  | 163.9 |
Other accrued expenses | 161.3 |  |  | 120.6 |
Accrued taxes other than income | 78.8 |  |  | 80.4 |
Asset retirement obligations | 65.0 |  |  | 77.7 |
Accrued royalties | 51.4 |  |  | 25.8 |
Liabilities associated with discontinued operations | 45.0 |  |  | 62.3 |
Liabilities from coal trading activities | 29.5 |  |  | 1.7 |
Income taxes payable | 20.2 |  |  | 2.3 |
Accrued insurance | 17.8 |  |  | 15.7 |
Operating lease liabilities | 16.4 |  |  | 24.5 |
Workers’ compensation obligations | 8.5 |  |  | 9.0 |
Accrued interest | 6.0 |  |  | 15.5 |
Accounts payable and accrued expenses | $ | 872.1 |  |  | $ | 745.7 |

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- References No definition available. + Details
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