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Marketable Securities (Tables) | 12 Months Ended
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Dec. 31, 2022
Marketable Securities |
Schedule of marketable securities |
Schedule of marketable securities |  |  |  |  |  |  |  |  |  |  |  |
|  | Marketable equity securities at December 31, 2022 |
|  |  |  |  |  | Gross unrealized |  |  | Gross unrealized |  |  |  |  |
|  | Cost |  |  | gains |  |  | losses |  |  | Fair value |
Common shares |  | $ | 10,271,000 |  |  | $ | 383,000 |  |  | $ | (4,064,000 | ) |  | $ | 6,590,000 |
|  | 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 |
Schedule of marketable equity securities |
Schedule of marketable equity securities |  |  |  |
|  | Marketable |
|  | Equity Securities |
Balance at January 1, 2021 |  | $ | 2,563,000 |
Purchases of marketable equity securities in operations |  |  | 385,235,000 |
Purchases of marketable equity securities |  |  | 2,765,000 |
Conversion of debt securities to marketable securities |  |  | 2,656,000 |
Sales of marketable equity securities in operations |  |  | (355,837,000 | )
Sales of marketable equity securities |  |  | (4,062,000 | )
Realized gains on marketable equity securities |  |  | 27,377,000 |
Realized losses on marketable equity securities |  |  | (6,190,000 | )
Unrealized losses on marketable equity securities |  |  | (14,127,000 | )
Balance at December 31, 2021 |  |  | 40,380,000 |
Purchases of marketable equity securities in operations |  |  | 107,958,000 |
Purchases of marketable equity securities |  |  | 2,017,000 |
Conversion of debt securities to marketable securities |  |  | 44,782,000 |
Conversion of loans receivable to marketable securities |  |  | 11,502,000 |
Conversion of interest receivable to marketable securities |  |  | 386,000 |
Sales of marketable equity securities in operations |  |  | (186,909,000 | )
Sales of marketable equity securities |  |  | (11,748,000 | )
Realized gains on marketable equity securities |  |  | 44,307,000 |
Realized losses on marketable equity securities |  |  | (32,196,000 | )
Unrealized losses on marketable equity securities |  |  | (13,889,000 | )
Balance at December 31, 2022 |  | $ | 6,590,000 |

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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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