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3. Trading Securities | 12 Months Ended
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Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract] |
Trading Securities | 3. TRADING SECURITIES Trading securities for the periods presented were comprised of the following:
|  | Cost |  |  | Gross Unrealized Gain |  |  | Gross Unrealized Loss |  |  | Fair Value |
|  |  | (In thousands) |
Security Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
December 31, 2020: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading securities - equity |  | $ | 36,851 |  |  | $ | 74,099 |  |  | $ | (1,847 | ) |  | $ | 109,103 |
December 31, 2019: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Trading securities - debt |  | $ | 93,712 |  |  | $ | 143 |  |  | $ | (12 | ) |  | $ | 93,843 |
Trading securities - equity |  |  | 17,674 |  |  |  | 211 |  |  |  | (745 | ) |  |  | 17,140 |
|  | $ | 111,386 |  |  | $ | 354 |  |  | $ | (757 | ) |  | $ | 110,983 |
Trading securities as of December 31, 2020 and 2019, were comprised of investments in equity securities of publicly held companies (equity securities) and investments in corporate bonds (debt securities). For the year ended December 31, 2020, proceeds from the sale and maturity of debt securities and equity securities were $118,459,000 and $46,383,000, respectively. For the year ended December 31, 2019, proceeds from the sale and maturity of debt securities and equity securities were $49,751,000 and $25,339,000, respectively.

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