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Organization and Nature of Business - Additional Information (Detail)	Dec. 31, 2016 a ft²	Dec. 31, 2014
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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Direct ownership percentage.

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Organization and nature of business.

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Area of land held.

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Area of a real estate property.

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