Segment Reporting (Schedule of Segment Reporting Information, by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Net Sales:
Net sales	$ 182,966	$ 218,297
Operating Income (Loss)
Total operating income (loss)	3,659	11,699
Total income before income taxes	4,703	11,492
Depreciation and Amortization:
Total depreciation and amortization	7,987	7,229
Interest Expense, net:
Total interest expense, net	1,030	1,003
Interest Expense, net:
Total interest expense, net	1,030	1,003
Capital Expenditures:
Capital expenditures	6,669	8,684
Long-Lived Assets	251,231		$ 270,943
Total Assets:
Total assets	600,490		602,209
Intersegment Eliminations [Member]
Net Sales:
Net sales	(9,615)	(10,589)
Total Assets:
Total assets	(316,341)		(322,468)
Control Devices [Member]
Net Sales:
Net sales	96,850	110,119
Operating Income (Loss)
Total operating income (loss)	7,322	11,948
Depreciation and Amortization:
Total depreciation and amortization	3,530	3,094
Interest Expense, net:
Total interest expense, net	81	182
Capital Expenditures:
Capital expenditures	2,314	3,492
Total Assets:
Total assets	189,348		191,491
Control Devices [Member] | Operating Segments [Member]
Net Sales:
Net sales	98,197	111,980
Control Devices [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales	1,347	1,861
Electronics [Member]
Net Sales:
Net sales	71,546	90,846
Operating Income (Loss)
Total operating income (loss)	2,872	9,031
Depreciation and Amortization:
Total depreciation and amortization	2,481	2,397
Interest Expense, net:
Total interest expense, net	87	56
Capital Expenditures:
Capital expenditures	2,650	3,738
Total Assets:
Total assets	271,750		285,027
Electronics [Member] | Operating Segments [Member]
Net Sales:
Net sales	79,814	99,568
Electronics [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales	8,268	8,722
Stoneridge Brazil [Member]
Net Sales:
Net sales	14,570	17,332
Operating Income (Loss)
Total operating income (loss)	859	670
Depreciation and Amortization:
Total depreciation and amortization	1,450	1,525
Interest Expense, net:
Total interest expense, net	10	108
Capital Expenditures:
Capital expenditures	1,133	819
Total Assets:
Total assets	65,258		89,393
Stoneridge Brazil [Member] | Operating Segments [Member]
Net Sales:
Net sales	14,570	17,338
Stoneridge Brazil [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales		6
Unallocated Corporate [Member]
Operating Income (Loss)
Total operating income (loss)	(7,394)	(9,950)
Depreciation and Amortization:
Total depreciation and amortization	526	213
Interest Expense, net:
Total interest expense, net	852	657
Capital Expenditures:
Capital expenditures	572	$ 635
Total Assets:
Total assets	$ 390,475		$ 358,766