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COMMITMENTS AND CONTINGENCIES (Tables) | 12 Months Ended
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Dec. 31, 2020
COMMITMENTS AND CONTINGENCIES |
Schedule of contractual commitments | Future minimum payments required under these commitments are as follows at December 31, 2020 (in thousands): ​
​ | ​ | ​ | ​ | ​
2021 |  | $ | 22,771 | ​
2022 |  | ​ | 16,065 | ​
2023 |  | ​ | 11,463 | ​
2024 |  | ​ | 10,416 | ​
2025 | ​ | ​ | 1,143 | ​
Thereafter |  | ​ | 1,838 | ​
Total obligations | ​ | $ | 63,696 | ​

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- Definition Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 303 -Paragraph (a) -Subparagraph (5) + Details
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