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Liabilities - Other Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Payables and Accruals [Abstract] |  |
Holdback liability from acquisitions | $ 1,500 | $ 1,500
Other liabilities | 7,050 | 5,311
Total other liabilities | $ 8,550 | $ 6,811

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