Selected Balance Sheet Data - Summary of Deferred Rent and Other Liabilities (Parenthetical) (Detail) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
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| Accounts Payable and Accrued Liabilities [Member] | ||
| Deferred Rent and other liabilities [Line Items] | ||
| Contingent consideration, current | $ 826 | $ 821 |
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- Definition Deferred Rent and other liabilities [Line Items] No definition available.
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- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Details
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