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Revenue (Revenue by Segment and Geographical Location) (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Disaggregation of Revenue [Line Items]        
Total net sales $ 191,334 $ 99,545 $ 385,129 $ 282,511
North America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 96,700 43,122 193,234 142,973
South America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 14,904 7,010 26,311 21,580
Europe [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 64,170 37,019 131,965 95,713
Asia Pacific [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 15,560 12,394 33,619 22,245
Control Devices [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 86,345 47,005 185,963 143,855
Control Devices [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 69,357 31,373 145,486 111,783
Control Devices [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 2,843 4,434 9,633 11,822
Control Devices [Member] | Asia Pacific [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 14,145 11,198 30,844 20,250
Electronics [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 90,085 45,530 172,855 117,076
Electronics [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 27,343 11,749 47,748 31,190
Electronics [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 61,327 32,585 122,332 83,891
Electronics [Member] | Asia Pacific [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 1,415 1,196 2,775 1,995
Stoneridge Brazil [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 14,904 7,010 26,311 21,580
Stoneridge Brazil [Member] | South America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales $ 14,904 $ 7,010 $ 26,311 $ 21,580