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Nature of the business and basis of presentation - Initial Public Offering (Details) $ / shares in Units, $ in Thousands |  |  |  | 9 Months Ended
--- | --- | --- | --- | ---
Aug. 04, 2021 USD ($) $ / shares shares | Jul. 19, 2021 USD ($) $ / shares shares | Jul. 09, 2021 | Sep. 30, 2021 USD ($)
Class of Stock [Line Items] |  |  |  |
Gross proceeds |  |  |  | $ 165,453
Reverse stock split ratio |  |  | 0.2 |
IPO |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock issued during period shares new issues | shares |  | 7,920,000 |  |
Share issued, price per share | $ / shares |  | $ 20.00 |  |
Gross proceeds |  | $ 158,400 |  |
Net proceeds |  | $ 143,800 |  |
Over Allotment Option |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock issued during period shares new issues | shares | 1,086,604 |  |  |
Share issued, price per share | $ / shares | $ 20.00 |  |  |
Net proceeds | $ 20,200 |  |  |

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