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Selected Balance Sheet Data - Schedule of Other Liabilities (Detail) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Other Liabilities [Abstract] |  |
Deferred consideration | $ 5,797 | $ 8,582
Contingent consideration | 5,026 | 4,219
Other | 1,091 | 1,015
Other liabilities | $ 11,914 | $ 13,816

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