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Joint operations (Tables) | 12 Months Ended
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Dec. 31, 2019
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 |  | 2019 |  | 2018
Total assets |  |  |  |  |  |
McArthur River | Canada | 69.81% | $ | 1,046,556 | $ | 1,065,562
Key Lake | Canada | 83.33% |  | 524,324 |  | 537,233
Cigar Lake | Canada | 50.03% |  | 1,354,399 |  | 1,503,863
|  |  | $ | 2,925,279 | $ | 3,106,658
Total liabilities |  |  |  |  |  |
McArthur River |  | 69.81% | $ | 32,132 | $ | 32,829
Key Lake |  | 83.33% |  | 227,562 |  | 222,369
Cigar Lake |  | 50.03% |  | 47,396 |  | 38,478
|  |  | $ | 307,090 | $ | 293,676

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