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Schedule of Other Current Assets (Detail) - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
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Other Current Assets, Properties and Equipment, Other Assets Accrued Expenses Other Current Liabilities and other Non current liabilities and Deferred Credits [Abstract] |  |
Deposits | $ 1,303 | $ 1,413
Prepaid expenses and other | 13,157 | 10,423
Total other current assets | $ 14,460 | $ 11,836

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