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Joint operations (Tables) | 12 Months Ended
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Dec. 31, 2018
Disclosure Of Joint Operations [Abstract] |
Joint operations proportionate interest in net assets table |
Cameco reflects its proportionate interest in these assets and liabilities as follows:
| Principal place |  |  |  |  |
| of business | Ownership |  | 2018 |  | 2017
Total assets |  |  |  |  |  |
McArthur River | Canada | 69.81% | $ | 1,065,562 | $ | 1,121,509
Key Lake | Canada | 83.33% |  | 537,233 |  | 482,879
Cigar Lake | Canada | 50.03% |  | 1,503,863 |  | 1,531,150
Inkai | Kazakhstan | 40.00% |  | - |  | 230,280
|  |  | $ | 3,106,658 | $ | 3,365,818
Total liabilities |  |  |  |  |  |
McArthur River |  | 69.81% | $ | 32,829 | $ | 38,896
Key Lake |  | 83.33% |  | 222,369 |  | 140,214
Cigar Lake |  | 50.03% |  | 38,478 |  | 40,687
Inkai |  | 40.00% |  | - |  | 119,998
|  |  | $ | 293,676 | $ | 339,795

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