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NET LOSS PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2020
NET LOSS PER SHARE |
Schedule of reconciliation of the basic and diluted weighted average number of common shares and the computations for basic and diluted net (loss) per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | Year ended December 31, | ​
​ |  |  | 2020 |  | 2019 |  | 2018 | ​
​ | ​ | ​ | (amounts in thousands, unless otherwise noted) | ​
Net loss | ​ | ​ | $ | (152,325) | ​ | $ | (59,747) | ​ | $ | (44,870) | ​
​ | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average common shares outstanding: | ​ | ​ | ​ | 403,457 | ​ | ​ | 361,845 | ​ | ​ | 337,297 | ​
Diluted shares outstanding: | ​ | ​ | ​ | 403,457 | ​ | ​ | 361,845 | ​ | ​ | 337,297 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss per share - basic and diluted | ​ | ​ | $ | (0.38) | ​ | $ | (0.17) | ​ | $ | (0.13) | ​

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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