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Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]    
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment $ (80,206) $ (78,043)
Property, plant and equipment, net 63,158 72,188
Land [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 3,204 3,932
Leaseholds and Leasehold Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 3,820 3,821
Building [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 72,772 76,989
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross 61,871 64,937
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property, Plant and Equipment, Gross $ 1,697 $ 552