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Restructuring - Additional Information (Detail)
 12 Months Ended
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Facility
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses $ 12,919,000 $ 14,772,000
Asset impairment loss 22,793,000 11,476,000
Manufacturing Footprint Rationalization | Minimum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 20,000,000  
Manufacturing Footprint Rationalization | Maximum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 24,000,000  
Advanced Research and Development Rationalization and Site Consolidation    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 4,669,000  
Asset impairment loss 425,000  
GPT and CSZ-IC    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 2,303,000  
Employee Separation Costs    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 8,056,000 8,449,000
Employee Separation Costs | Manufacturing Footprint Rationalization    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 4,863,000  
Restructuring reserve accelerated depreciation and fixed asset impairment 2,087,000  
Employee Separation Costs | Manufacturing Footprint Rationalization | Minimum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 9,000,000  
Employee Separation Costs | Manufacturing Footprint Rationalization | Maximum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 11,000,000  
Employee Separation Costs | Other Restructuring Activities    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 2,942,000 6,598,000
Employee Separation Costs | Advanced Research and Development Rationalization and Site Consolidation    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses   1,094,000
Employee Separation Costs | GPT and CSZ-IC    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 251,000 757,000
Cash Expenditures | Manufacturing Footprint Rationalization | Minimum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 17,000,000  
Cash Expenditures | Manufacturing Footprint Rationalization | Maximum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 21,000,000  
Restructuring Capital Expenditures | Manufacturing Footprint Rationalization | Minimum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 4,500,000  
Restructuring Capital Expenditures | Manufacturing Footprint Rationalization | Maximum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 5,500,000  
Accelerated Depreciation and Impairment    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 2,512,000 2,507,000
Accelerated Depreciation and Impairment | Manufacturing Footprint Rationalization    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 3,000,000  
Other Restructuring    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 2,351,000 3,816,000
Other Restructuring | Manufacturing Footprint Rationalization | Minimum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 3,500,000  
Other Restructuring | Manufacturing Footprint Rationalization | Maximum    
Restructuring Cost And Reserve [Line Items]    
Restructuring and related cost expected total cost 4,500,000  
Other Restructuring | Other Restructuring Activities    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses 1,360,000 2,869,000
Other Restructuring | Advanced Research and Development Rationalization and Site Consolidation    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses   643,000
Other Restructuring | GPT and CSZ-IC    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses $ 991,000 304,000
Loss on the Sale of Battery Management Systems | Advanced Research and Development Rationalization and Site Consolidation    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses   1,107,000
Asset Disposal Costs | Advanced Research and Development Rationalization and Site Consolidation    
Restructuring Cost And Reserve [Line Items]    
Restructuring expenses   $ 1,400,000
Facility Closing | Advanced Research and Development Rationalization and Site Consolidation    
Restructuring Cost And Reserve [Line Items]    
Number of leased facilities vacated | Facility   2