Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail)

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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
Apr. 01, 2017
Dec. 31, 2016
Property, Plant and Equipment    
Property, plant and equipment, gross $ 195,058 $ 192,168
Less Accumulated Depreciation 72,899 69,356
Property, plant and equipment, net 122,159 122,812
Land    
Property, Plant and Equipment    
Property, plant and equipment, gross 11,123 11,112
Buildings and Improvements    
Property, Plant and Equipment    
Property, plant and equipment, gross 79,318 79,191
Machinery and Equipment    
Property, Plant and Equipment    
Property, plant and equipment, gross 95,653 93,683
Construction in Progress    
Property, Plant and Equipment    
Property, plant and equipment, gross $ 8,964 $ 8,182