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FAIR VALUE MEASUREMENTS - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Investments | $ 98,700,000 |  |
Interest receivable | 467,000 |  |
Cost-method investment impairment | $ 0 | $ 0 | $ 0
BFTR, LLC |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions |  |  |
Cost method investment |  | $ 10,000,000 |
Investment percentage |  | 18.00% |

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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI) and investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
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