Revenue (Revenue by Segment and Geographical Location) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total net sales	$ 99,545	$ 222,241	$ 282,511	$ 440,538
North America [Member]
Disaggregation of Revenue [Line Items]
Total net sales	43,122	123,293	142,973	242,660
South America [Member]
Disaggregation of Revenue [Line Items]
Total net sales	7,010	16,614	21,580	33,946
Europe [Member]
Disaggregation of Revenue [Line Items]
Total net sales	37,019	70,254	95,713	141,608
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net sales	12,394	12,080	22,245	22,324
Control Devices [Member]
Disaggregation of Revenue [Line Items]
Total net sales	47,005	114,067	143,855	224,186
Control Devices [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total net sales	31,373	98,066	111,783	194,786
Control Devices [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Total net sales	4,434	5,456	11,822	9,868
Control Devices [Member] | Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net sales	11,198	10,545	20,250	19,532
Electronics [Member]
Disaggregation of Revenue [Line Items]
Total net sales	45,530	91,560	117,076	182,406
Electronics [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total net sales	11,749	25,227	31,190	47,874
Electronics [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Total net sales	32,585	64,798	83,891	131,740
Electronics [Member] | Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net sales	1,196	1,535	1,995	2,792
Stoneridge Brazil [Member]
Disaggregation of Revenue [Line Items]
Total net sales	7,010	16,614	21,580	33,946
Stoneridge Brazil [Member] | South America [Member]
Disaggregation of Revenue [Line Items]
Total net sales	$ 7,010	$ 16,614	$ 21,580	$ 33,946