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Organization and Nature of Business - Additional Information (Detail) | Dec. 31, 2017 a ft² | Dec. 31, 2014
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Beaumont, Texas facilities |  |
Organization And Nature Of Business [Line Items] |  |
Area of Land | a | 9 |
Company owns facility | ft² | 118,000 |
M&I Brazil |  |
Organization And Nature Of Business [Line Items] |  |
Ownership interest in wholly-owned subsidiary |  | 20.00%
M&I Brazil | M&I |  |
Organization And Nature Of Business [Line Items] |  |
Ownership interest in wholly-owned subsidiary |  | 80.00%

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