XML 72 R59.htm IDEA: XBRL DOCUMENT v3.22.1
Litigation and Environmental - Walnut Creek (Details) - State of California - SFPP
$ in Millions
3 Months Ended
Dec. 16, 2021
USD ($)
Dec. 08, 2020
bbl
Nov. 20, 2020
bbl
Mar. 31, 2022
Environmental Remediation Estimated Spill Volume | bbl   1,000 8.1  
Environmental Remediation Expense | $ $ 2.5      
Estimated Remedy Implementation Period       18 months