XML 63 R50.htm IDEA: XBRL DOCUMENT v3.22.2.2
INCOME AND MINING TAXES - Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Beginning balance $ 0.0 $ 0.0
Increase associated with tax positions taken during the current year 0.0 0.0
Increase (decrease) associated with tax positions taken during a prior year 9.2 0.0
Settlements 0.0 0.0
Decrease associated with lapses in statutes of limitation 0.0 0.0
Ending balance $ 9.2 $ 0.0