XML 44 R21.htm IDEA: XBRL DOCUMENT v3.22.4
Environmental
12 Months Ended
Dec. 31, 2022
Environmental Expense and Liabilities [Abstract]  
Environmental EnvironmentalWe expensed $13.4 million, $7.8 million and $7.1 million for the years ended December 31, 2022, 2021 and 2020, respectively, for environmental remediation obligations. The accrued environmental liability reflected on our consolidated balance sheets was $192.3 million and $117.2 million at December 31, 2022 and 2021, respectively, of which $170.0 million and $99.1 million, respectively, were classified as other long-term liabilities. These accruals include remediation and monitoring costs expected to be incurred over an extended period of time. Accrued environmental liabilities assumed in the Sinclair Transactions were $72.2 million at the acquisition date and an associated receivable from third parties of $21.5 million. Estimated liabilities could increase in the future when the results of ongoing investigations become known, are considered probable and can be reasonably estimated.