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Revenue (Revenue by Segment and Geographical Location) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Disaggregation of Revenue [Line Items]    
Total net sales $ 193,795 $ 182,966
North America [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 96,534 99,851
South America [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 11,407 14,570
Europe [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 67,795 58,694
Asia Pacific [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 18,059 9,851
Control Devices [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 99,618 96,850
Control Devices [Member] | North America [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 76,129 80,410
Control Devices [Member] | Europe [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 6,790 7,388
Control Devices [Member] | Asia Pacific [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 16,699 9,052
Electronics [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 82,770 71,546
Electronics [Member] | North America [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 20,405 19,441
Electronics [Member] | Europe [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 61,005 51,306
Electronics [Member] | Asia Pacific [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 1,360 799
Stoneridge Brazil [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales 11,407 14,570
Stoneridge Brazil [Member] | South America [Member]    
Disaggregation of Revenue [Line Items]    
Total net sales $ 11,407 $ 14,570