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INVESTMENTS (Tables) | 6 Months Ended
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Jun. 30, 2021
INVESTMENTS [Abstract] |
Short-term and Long-term Investments | The following table sets forth a breakdown of the categories of short-term and long-term investments held by the Company:
|  | As of |
|  | December 31, 2020 |  |  | June 30, 2021 |
|  |  | $ |  |  |  | $ |
Short-term investments |  |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |  |
Held to maturity |  |  | 28,330 |  |  |  | 718,517 |
Available-for-sale |  |  | 21,769 |  |  |  | 168,091 |
Equity securities |  |  | 76,000 |  |  |  | 75,533 |
|  |  | 126,099 |  |  |  | 962,141 |
Long-term investments |  |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |  |
Held to maturity |  |  | 68,854 |  |  |  | 67,463 |
Available-for-sale |  |  | 5,276 |  |  |  | 45,385 |
Equity securities |  |  | 21,419 |  |  |  | 42,684 |
Equity method investments |  |  | 94,933 |  |  |  | 108,848 |
Investments carried at fair value |  |  | – |  |  |  | 21,992 |
|  |  | 190,482 |  |  |  | 286,372 |
Debt Securities and Investments Carried at Fair Value | The following table summarizes the cost or amortized cost, gross unrecognized gains and losses, gross unrealized gains and losses, and fair value of the Company’s debt securities and investments carried at fair value as of December 31, 2020 and June 30, 2021 are shown as below:
|  | As of December 31, 2020 |
|  | Cost or Amortized cost |  |  | Gross unrecognized gains |  |  | Gross unrecognized losses |  |  | Gross unrealized gains |  |  | Gross unrealized losses |  |  | Fair value |
|  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Held to maturity |  |  | 28,330 |  |  |  | – |  |  |  | (1 | ) |  |  | – |  |  |  | – |  |  |  | 28,329 |
Available-for-sale |  |  | 20,859 |  |  |  | – |  |  |  | – |  |  |  | 910 |  |  |  | – |  |  |  | 21,769 |
Long-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Held to maturity |  |  | 68,854 |  |  |  | 3,197 |  |  |  | (23 | ) |  |  | – |  |  |  | – |  |  |  | 72,028 |
Available-for-sale |  |  | 5,174 |  |  |  | – |  |  |  | – |  |  |  | 102 |  |  |  | – |  |  |  | 5,276 |
|  |  | 123,217 |  |  |  | 3,197 |  |  |  | (24 | ) |  |  | 1,012 |  |  |  | – |  |  |  | 127,402 |
|  | As of June 30, 2021 |
|  | Cost or Amortized cost |  |  | Gross unrecognized gains |  |  | Gross unrecognized losses |  |  | Gross unrealized gains |  |  | Gross unrealized losses |  |  | Fair value |
|  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |  |  | $ |
Short-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Held to maturity |  |  | 718,517 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 718,517 |
Available-for-sale |  |  | 170,872 |  |  |  | – |  |  |  | – |  |  |  | 77 |  |  |  | (2,858 | ) |  |  | 168,091 |
Long-term investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Held to maturity |  |  | 67,463 |  |  |  | 2,123 |  |  |  | (495 | ) |  |  | – |  |  |  | – |  |  |  | 69,091 |
Available-for-sale |  |  | 45,003 |  |  |  | – |  |  |  | – |  |  |  | 426 |  |  |  | (44 | ) |  |  | 45,385 |
Investments carried at fair value |  |  | 21,992 |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | – |  |  |  | 21,992 |
|  |  | 1,023,847 |  |  |  | 2,123 |  |  |  | (495 | ) |  |  | 503 |  |  |  | (2,902 | ) |  |  | 1,023,076 |

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- Definition Tabular disclosure of investment. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -URI http://asc.fasb.org/topic&trid=2197064 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -URI http://asc.fasb.org/topic&trid=75115024 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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