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Cash and Cash Equivalents and Restricted Cash (Tables) | 9 Months Ended
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Sep. 30, 2021
Cash and Cash Equivalents and Restricted Cash |
Schedule of cash and cash equivalent and restricted cash | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | September 30, 2021 |  | December 31, 2020
Cash and cash equivalents |  | $ | 145,597 |  | $ | 90,626
Restricted | ​ | ​ | — | ​ | ​ | 15,500
​ |  | $ | 145,597 |  | $ | 106,126

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