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Revenue (Revenue by Segment and Geographical Location) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Disaggregation of Revenue [Line Items]        
Total net sales $ 181,680 $ 175,764 $ 566,809 $ 458,275
North America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 95,395 97,576 288,629 240,549
South America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 16,477 12,827 42,788 34,407
Europe [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 54,051 52,028 186,016 147,741
Asia Pacific [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 15,757 13,333 49,376 35,578
Control Devices [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 87,618 99,942 273,581 243,797
Control Devices [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 70,334 79,106 215,820 190,889
Control Devices [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 3,048 8,833 12,681 20,655
Control Devices [Member] | Asia Pacific [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 14,236 12,003 45,080 32,253
Electronics [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 77,585 62,995 250,440 180,071
Electronics [Member] | North America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 25,061 18,470 72,809 49,660
Electronics [Member] | Europe [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 51,003 43,195 173,335 127,086
Electronics [Member] | Asia Pacific [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 1,521 1,330 4,296 3,325
Stoneridge Brazil [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales 16,477 12,827 42,788 34,407
Stoneridge Brazil [Member] | South America [Member]        
Disaggregation of Revenue [Line Items]        
Total net sales $ 16,477 $ 12,827 $ 42,788 $ 34,407