Restructuring and Business Realignment (Schedule of Business Realignment Charges Classified by Statement of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Total business realignment charges	$ 1,829	$ 710	$ 1,812
Cost of Goods Sold [Member]
Restructuring Cost and Reserve [Line Items]
Total business realignment charges		63	426
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Total business realignment charges	1,829	491	1,385
Design and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Total business realignment charges		156	1
Control Devices [Member]
Restructuring Cost and Reserve [Line Items]
Total business realignment charges	682	169
Control Devices [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	682		41
Control Devices [Member] | Design and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		128
Electronics [Member]
Restructuring Cost and Reserve [Line Items]
Total business realignment charges	99	63	1,223
Electronics [Member] | Cost of Goods Sold [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs			56
Electronics [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	99	63	1,167
Stoneridge Brazil [Member]
Restructuring Cost and Reserve [Line Items]
Total business realignment charges		478	589
Stoneridge Brazil [Member] | Cost of Goods Sold [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		63	370
Stoneridge Brazil [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		387	218
Stoneridge Brazil [Member] | Design and Development Expense [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs		$ 28	$ 1
Unallocated Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Total business realignment charges	1,048
Unallocated Corporate [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	$ 1,048