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OVERVIEW AND BASIS OF PRESENTATION (Tables) | 3 Months Ended
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Mar. 31, 2022
OVERVIEW AND BASIS OF PRESENTATION [Abstract] |
Restrictions on Cash and Cash Equivalents [Table Text Block] | The following table provides a reconciliation of cash, cash equivalents and restricted cash reported in the Condensed Consolidated Balance Sheets that sum to the amounts reported in the Condensed Consolidated Statement of Cash Flows (in thousands):
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​ | ​ | ​ | March 31, 2022 |  | December 31, 2021 | ​
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Cash and cash equivalents | ​ | ​ | $ | 156,828 |  | $ | 158,205 | ​
Restricted cash included in "Prepaid and other current assets" | ​ | ​ |  | 15,379 | ​ |  | 22,477 | ​
Total | ​ | ​ | $ | 172,207 |  | $ | 180,682 | ​

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