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Business Combinations - Summary of summarized financial information (Parenthetical) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Business Combinations [Abstract] |  |  |  |
Depreciation Expense | $ 1,353 | $ 961 | $ 3,944 | $ 1,973
Gain recognized on settlement of net liabilities | $ 4,348 |  |  | $ 4,348

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