XML 93 R64.htm IDEA: XBRL DOCUMENT v3.24.0.1
Gold Bullion, Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Gold Bullion, Prepaid Expenses and Other Current Assets    
Gold bullion $ 51.3 $ 28.1
Prepaid expenses 30.0 22.1
Stream ounces inventory 0.5 0.1
Debt issue costs 0.6 0.6
Gold bullion, prepaid expenses and other current assets $ 82.4 $ 50.9