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Revenue Recognition - Additional Information (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2018 USD ($) Segment | Jun. 30, 2017 USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |  |
Number of reportable segments | Segment |  |  | 1 |
Remaining performance obligations | $ 34,616 |  | $ 34,616 |
Revenue recognized | 12,740 |  | 4,514 |
Net sales | 107,046 | $ 77,905 | 211,154 | $ 148,578
Accounting Standards Update 2014-09 |  |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |  |
Net sales | 107,046 |  | 211,154 |
Accounting Standards Update 2014-09 | Adjustment Due to Adoption of Topic 606 |  |  |  |
New Accounting Pronouncements Or Change In Accounting Principle [Line Items] |  |  |  |
Net sales | $ (33) |  | $ (57) |

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