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Schedule of Other Assets (Detail) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Other Assets, Noncurrent [Abstract] |  |
Recoverable insurance losses | $ 2,585 | $ 2,405
Investments held for supplemental savings plan accounts | 5,274 | 6,583
Long-term deposits | 13,763 | 16,217
Other | 5,157 | 5,847
Total other assets | $ 26,779 | $ 31,052

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