XML 92 R63.htm IDEA: XBRL DOCUMENT v3.23.1
CONSOLIDATED FINANCIAL STATEMENT DETAILS - Other operating expense (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure:    
Other operating expense $ 113.8 $ 266.4
Other expenses, environmental and other operating expenses for non-operating mining sites 52.5 71.5
Other expenses, temporary suspensions of milling operations and mill repair   59.2
Other expenses, stabilizing the north wall at Round Mountain   50.1
Other expenses, associated with the COVID-19 pandemic   20.8
Other operating expense, project and study costs $ 6.2 $ 2.9