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Selected Balance Sheet Data - Schedule of Other Liabilities (Detail) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Other Liabilities [Abstract] |  |
Deferred consideration | $ 7,171 | $ 8,582
Contingent consideration | 4,033 | 4,219
Other | 1,013 | 1,015
Other liabilities | $ 12,217 | $ 13,816

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