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Business Realignment and Restructuring (Schedule of Restructuring and Related Costs) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Control Devices [Member] | Particulate Matter Product Line Strategic Exit [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance $ 35  
Charge to expense   $ 1,369
Cash payments (35) (1,184)
Utilization, Non-Cash   (185)
Restructuring Reserve, Ending Balance 0  
Control Devices [Member] | Canton Facility Restructuring Plan [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance 93 165
Charge to expense   13
Cash payments (93) (38)
Restructuring Reserve, Ending Balance 0 140
Control Devices [Member] | Cost of Goods Sold [Member] | Particulate Matter Product Line Strategic Exit [Member]    
Restructuring Cost and Reserve [Line Items]    
Charge to expense   650
Control Devices [Member] | Selling, General and Administrative Expenses [Member] | Particulate Matter Product Line Strategic Exit [Member]    
Restructuring Cost and Reserve [Line Items]    
Charge to expense   638
Control Devices [Member] | Design and Development Expense [Member] | Particulate Matter Product Line Strategic Exit [Member]    
Restructuring Cost and Reserve [Line Items]    
Charge to expense   81
Control Devices [Member] | Design and Development Expense [Member] | Canton Facility Restructuring Plan [Member]    
Restructuring Cost and Reserve [Line Items]    
Charge to expense   13
Electronics [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance   227
Charge to expense 199 199
Cash payments   (194)
Restructuring Reserve, Ending Balance   232
Electronics [Member] | Cost of Goods Sold [Member]    
Restructuring Cost and Reserve [Line Items]    
Charge to expense (2)  
Employee Severance [Member] | Control Devices [Member] | Particulate Matter Product Line Strategic Exit [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance 35  
Charge to expense   76
Cash payments (35) (76)
Restructuring Reserve, Ending Balance 0  
Employee Severance [Member] | Control Devices [Member] | Canton Facility Restructuring Plan [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance 93 165
Cash payments (93) (25)
Restructuring Reserve, Ending Balance 0 140
Employee Severance [Member] | Electronics [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance   227
Charge to expense   53
Cash payments   (48)
Restructuring Reserve, Ending Balance   232
Fixed Asset Impairment [Member] | Control Devices [Member] | Particulate Matter Product Line Strategic Exit [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance 0  
Charge to expense   185
Utilization, Non-Cash   (185)
Restructuring Reserve, Ending Balance 0  
Other Restructuring [Member] | Control Devices [Member] | Particulate Matter Product Line Strategic Exit [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance 0  
Charge to expense   1,108
Cash payments   (1,108)
Restructuring Reserve, Ending Balance 0  
Other Restructuring [Member] | Control Devices [Member] | Canton Facility Restructuring Plan [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring Reserve, Beginning Balance 0 0
Charge to expense   13
Cash payments   (13)
Restructuring Reserve, Ending Balance $ 0 0
Other Restructuring [Member] | Electronics [Member]    
Restructuring Cost and Reserve [Line Items]    
Charge to expense   146
Cash payments   $ (146)