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Subsequent events (Details) - Asset acquisition subsequent to year-end $ in Millions | Mar. 08, 2021 USD ($) oz
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Condestable Gold and Silver Stream Acquisition, Peru |
Subsequent events |
Consideration transferred | $ | $ 165.0
Receive of refined gold quarterly as percentage of production from stream area | 8,760
Receive of refined silver quarterly as percentage of production from stream area | 291,000
Deliveries of ounces of refined gold threshold | 43,800
Deliveries of refined silver threshold ounces | 1,455,000
Gold Purchase Price Upon Delivery Initial | 20.00%
Silver Purchase Price Upon Delivery Initial | 20.00%
Deliveries of refined gold as special delivery from stream area | $ | $ 118.8
Condestable Gold and Silver Stream Acquisition, Peru Variable Phase 1 Deliveries of Stream |
Subsequent events |
Deliveries of ounces of refined gold threshold | 87,600
Deliveries of refined silver threshold ounces | 2,910,000
Refined gold will receive as percentage of production from stream area | 63.00%
Refined silver will receive as percentage of production from stream area | 63.00%
Condestable Gold and Silver Stream Acquisition, Peru, Fixed Phase 2 Deliveries of Stream [Member] |
Subsequent events |
Refined gold delivery as percentage of production from stream area | 25.00%
Refined silver delivery as percentage of production from stream area | 25.00%

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