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Investments | 12 Months Ended
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Dec. 31, 2019
Investment in Marketable Securities [Abstract] |
INVESTMENTS | INVESTMENTS Equity and Debt Securities The Company makes strategic investments in equity and debt securities of silver and gold exploration, development and royalty and streaming companies.
| At December 31, 2019
In thousands | Cost |  | Gross Unrealized Losses |  | Gross Unrealized Gains |  | Estimated Fair Value
Equity Securities |  |  |  |  |  |  |
Metalla Royalty & Streaming Ltd. | $ | 10,463 |  |  | $ | — |  |  | $ | 17,725 |  |  | $ | 28,188 |
Integra Resources Corp. | 5,000 |  |  | — |  |  | 355 |  |  | 5,355 |
Rockhaven Resources Ltd. | 2,064 |  |  | (376 | ) |  | — |  |  | 1,688 |
Other | 1,304 |  |  | (888 | ) |  | — |  |  | 415 |
Equity securities | $ | 18,831 |  |  | $ | (1,264 | ) |  | $ | 18,080 |  |  | $ | 35,646 |
| At December 31, 2018
In thousands | Cost |  | Gross Unrealized Losses |  | Gross Unrealized Gains |  | Estimated Fair Value
Equity Securities |  |  |  |  |  |  |
Metalla Royalty & Streaming Ltd. | $ | 10,695 |  |  | $ | — |  |  | $ | 2,852 |  |  | $ | 13,547 |
Rockhaven Resources, Ltd. | 2,064 |  |  | (452 | ) |  | — |  |  | 1,612 |
Other | 1,376 |  |  | (946 | ) |  | — |  |  | 430 |
Equity securities | $ | 14,135 |  |  | $ | (1,398 | ) |  | $ | 2,852 |  |  | $ | 15,589 |
Debt Securities |  |  |  |  |  |  |
Metalla Royalty & Streaming Ltd. | $ | 2,271 |  |  | $ | (54 | ) |  | $ | — |  |  | $ | 2,217 |
Equity and debt securities | $ | 16,406 |  |  | $ | (1,452 | ) |  | $ | 2,852 |  |  | $ | 17,806 |
The following table presents the disaggregated gain (loss) on equity securities recognized in Income (loss) from continuing operations on the Consolidated Statements of Comprehensive Income:
| Year ended December 31,
In thousands | 2019 |  | 2018 |  | 2017
Net gain (loss) | $ | 16,208 |  |  | $ | 2,945 |  |  | $ | 1,356 |
Less: Realized (gain) loss | (860 | ) |  | (7,964 | ) |  | (1,356 | )
Unrealized gain (loss) | $ | 15,348 |  |  | $ | (5,019 | ) |  | $ | — |
The Company performs a quarterly assessment on its debt securities with unrealized losses to determine if the securities are other than temporarily impaired. At December 31, 2019, the Company had no remaining investments in debt securities.

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- Definition Investment in marketable securities. + References No definition available. + Details
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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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