Revenue (Revenue by Segment and Geographical Location) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Total net sales	$ 190,365	$ 203,386	$ 222,241	$ 218,297	$ 210,814	$ 208,853	$ 220,602	$ 225,930	$ 834,289	$ 866,199	$ 824,444
North America [Member]
Disaggregation of Revenue [Line Items]
Total net sales									457,633	480,511	471,770
South America [Member]
Disaggregation of Revenue [Line Items]
Total net sales									67,534	80,175	94,533
Europe [Member]
Disaggregation of Revenue [Line Items]
Total net sales									259,461	270,127	224,741
Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net sales									49,661	35,386	33,400
Control Devices [Member]
Disaggregation of Revenue [Line Items]
Total net sales									431,560	441,297	447,528
Control Devices [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total net sales									365,010	395,148	409,596
Control Devices [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Total net sales									22,467	14,727	8,164
Control Devices [Member] | Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net sales									44,083	31,422	29,768
Electronics [Member]
Disaggregation of Revenue [Line Items]
Total net sales									335,195	344,727	282,383
Electronics [Member] | North America [Member]
Disaggregation of Revenue [Line Items]
Total net sales									92,623	85,363	62,174
Electronics [Member] | Europe [Member]
Disaggregation of Revenue [Line Items]
Total net sales									236,994	255,400	216,577
Electronics [Member] | Asia Pacific [Member]
Disaggregation of Revenue [Line Items]
Total net sales									5,578	3,964	3,632
Stoneridge Brazil [Member]
Disaggregation of Revenue [Line Items]
Total net sales									67,534	80,175	94,533
Stoneridge Brazil [Member] | South America [Member]
Disaggregation of Revenue [Line Items]
Total net sales									$ 67,534	$ 80,175	$ 94,533