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CASH FLOW ITEMS - Changes in Other Investing Activities (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020
Cash Flow Statement [Abstract] |  |
Advances to Staatsolie | $ (48.5) | $ (30.9)
Repayment from Staatsolie | 45.5 | 44.7
Cash received on sale of Sadiola | 1.8 | 25.0
Acquisition of investments | (0.2) | (2.2)
Interest received | 3.8 | 7.1
Increase in restricted cash | (6.0) | (6.4)
Purchase of additional common shares of associate | (1.7) | 0.0
Capital expenditures for exploration and evaluation assets | (1.9) | (0.6)
Acquisition of exploration and evaluation assets | (5.0) | (0.4)
Acquisition of royalty interests | (7.2) | 0.0
Repayment for other assets | (0.3) | 0.2
Advances to related parties | 0.0 | (0.1)
Repayments from related parties | 0.0 | 0.1
Other | (1.7) | (0.1)
Other investing activities | $ (21.4) | $ 36.4

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