Segment Reporting (Schedule of Segment Reporting Information, by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Net Sales:
Net sales	$ 99,545	$ 222,241	$ 282,511	$ 440,538
Operating Income (Loss)
Total operating income (loss)	(26,823)	49,186	(23,164)	60,885
Total income before income taxes	(28,455)	48,830	(23,752)	60,322
Depreciation and Amortization:
Total depreciation and amortization	7,801	7,618	15,788	14,847
Interest Expense, net:
Total interest expense, net	1,410	1,001	2,440	2,004
Interest Expense, net:
Total interest expense, net	1,410	1,001	2,440	2,004
Capital Expenditures:
Capital expenditures	9,145	8,795	15,814	17,479
Long-Lived Assets	260,576		260,576		$ 270,943
Total Assets:
Total assets	557,219		557,219		602,209
Intersegment Eliminations [Member]
Net Sales:
Net sales	(3,601)	(12,403)	(13,216)	(22,992)
Total Assets:
Total assets	(324,035)		(324,035)		(322,468)
Control Devices [Member]
Net Sales:
Net sales	47,005	114,067	143,855	224,186
Operating Income (Loss)
Total operating income (loss)	(9,656)	44,367	(2,334)	56,315
Depreciation and Amortization:
Total depreciation and amortization	3,639	3,197	7,169	6,291
Interest Expense, net:
Total interest expense, net	89	195	170	377
Capital Expenditures:
Capital expenditures	3,349	4,042	5,663	7,534
Total Assets:
Total assets	167,585		167,585		191,491
Control Devices [Member] | Operating Segments [Member]
Net Sales:
Net sales	48,564	116,145	146,761	228,125
Control Devices [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales	1,559	2,078	2,906	3,939
Electronics [Member]
Net Sales:
Net sales	45,530	91,560	117,076	182,406
Operating Income (Loss)
Total operating income (loss)	(11,042)	7,555	(8,170)	16,586
Depreciation and Amortization:
Total depreciation and amortization	2,393	2,510	4,874	4,907
Interest Expense, net:
Total interest expense, net	313	63	400	119
Capital Expenditures:
Capital expenditures	5,410	3,356	8,060	7,094
Total Assets:
Total assets	262,730		262,730		285,027
Electronics [Member] | Operating Segments [Member]
Net Sales:
Net sales	47,572	101,885	127,386	201,453
Electronics [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales	2,042	10,325	10,310	19,047
Stoneridge Brazil [Member]
Net Sales:
Net sales	7,010	16,614	21,580	33,946
Operating Income (Loss)
Total operating income (loss)	(879)	6,414	(20)	7,084
Depreciation and Amortization:
Total depreciation and amortization	1,273	1,695	2,723	3,220
Interest Expense, net:
Total interest expense, net	(7)	(59)	3	49
Capital Expenditures:
Capital expenditures	281	805	1,414	1,624
Total Assets:
Total assets	62,060		62,060		89,393
Stoneridge Brazil [Member] | Operating Segments [Member]
Net Sales:
Net sales	7,010	16,614	21,580	33,952
Stoneridge Brazil [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales				6
Unallocated Corporate [Member]
Operating Income (Loss)
Total operating income (loss)	(5,246)	(9,150)	(12,640)	(19,100)
Depreciation and Amortization:
Total depreciation and amortization	496	216	1,022	429
Interest Expense, net:
Total interest expense, net	1,015	802	1,867	1,459
Capital Expenditures:
Capital expenditures	105	$ 592	677	$ 1,227
Total Assets:
Total assets	$ 388,879		$ 388,879		$ 358,766