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Commitments and Contingencies (Narrative) (Details) $ in Thousands, $ in Millions | Dec. 30, 2013 CAD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 10, 2021 USD ($) | Dec. 31, 2013
--- | --- | --- | --- | --- | ---
Leases [Line Items] |  |  |  |  |
Equipment purchase commitments |  | $ 1,200 | $ 400 |  |
Contingent consideration |  | 4,036 | 4,603 |  |
Contingent consideration |  | 4,036 | $ 4,603 |  |
HudBay Michigan Inc |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  |  | 100.00%
Aquila Resources Inc. | Gold and silver streaming agreement with Osisko Bermuda Limited | Back Forty Project |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Deposit amount |  |  |  | $ 37,200 |
Aquila Resources Inc. | Back Forty Project |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Percentage of ownership interest held | 100.00% |  |  |  |
Contingent consideration | $ 9 |  |  |  |
Contingent consideration due upon project financing | $ 3 |  |  |  |
Percentage of contingent consideration payable in shares | 50.00% |  |  |  |
Contingent consideration payable in shares | $ 3 |  |  |  |
Right to repurchase ownership interest | 51.00% |  |  |  |
Contingent consideration |  | $ 4,000 |  |  |
Aquila Resources Inc. | Back Forty Project | 90 days after the commencement of commercial production |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Contingent consideration payable in cash | $ 2 |  |  |  |
Aquila Resources Inc. | Back Forty Project | 270 days after the commencement of commercial production |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Contingent consideration payable in cash | 2 |  |  |  |
Aquila Resources Inc. | Back Forty Project | 450 days after the commencement of commercial production |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Contingent consideration payable in cash | $ 2 |  |  |  |
HudBay Michigan Inc | HudBay Michigan Inc |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Percentage of net smelter return royalty on production | 1.00% |  |  |  |
HudBay Michigan Inc | Back Forty Project |  |  |  |  |
Leases [Line Items] |  |  |  |  |
Percentage of voting equity interests acquired at the asset acquisition date tied to the development of project | 51.00% |  |  |  |

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