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Marketable Securities (Tables) | 3 Months Ended
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Mar. 31, 2022
Marketable Securities |
Marketable securities in equity securities with readily determinable market prices consisted of the following as of March 31, 2022 and December 31, 2021: | Marketable securities in equity securities with readily determinable market prices consisted of the following as of March 31, 2022 and December 31, 2021:
|  | Marketable equity securities at March 31, 2022 |
|  |  |  |  | Gross unrealized |  |  | Gross unrealized |  |  |  |
|  | Cost |  |  | gains |  |  | losses |  |  | Fair value |
Common shares |  | $ | 16,366,000 |  |  | $ | 5,268,000 |  |  | $ | (5,476,000 | ) |  | $ | 16,158,000 |
|  | Marketable equity securities at December 31, 2021 |
|  |  |  |  | Gross unrealized |  |  | Gross unrealized |  |  |  |
|  | Cost |  |  | gains |  |  | losses |  |  | Fair value |
Common shares |  | $ | 53,475,000 |  |  | $ | 32,000 |  |  | $ | (13,127,000 | ) |  | $ | 40,380,000 |

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- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
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