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Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2021
Significant Accounting Policies |
Reconciliation of Cash, Cash Equivalents, and Restricted Cash | The following table provides a reconciliation of cash, cash equivalents, and restricted cash from the Unaudited Condensed Balance Sheets to the Unaudited Condensed Statements of Cash Flows for the nine months ended September 30, 2021 and 2020: ​
​ | ​ | ​ | ​
​ | September 30
($ in thousands) | 2021 | ​ | 2020
Cash and cash equivalents | $ 120,879 | ​ | $ 75,251
Restricted cash | 1,000 | ​ | 1,000
Total cash, cash equivalents and restricted cash | $ 121,879 | ​ | $ 76,251

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