Segment Reporting (Schedule of Segment Reporting Information, by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Net Sales:
Net sales	$ 191,334	$ 99,545	$ 385,129	$ 282,511
Operating Income (Loss)
Total operating income (loss)	26,684	(26,823)	28,743	(23,164)
Total income before income taxes	25,592	(28,455)	26,141	(23,752)
Depreciation and Amortization:
Total depreciation and amortization	8,643	7,801	17,224	15,788
Interest Expense, net:
Total interest expense, net	1,860	1,410	3,626	2,440
Interest Expense, net:
Total interest expense, net	1,860	1,410	3,626	2,440
Capital Expenditures:
Capital expenditures	4,795	9,145	10,769	15,814
Long-Lived Assets	273,523		273,523		$ 286,744
Total Assets:
Total assets	635,932		635,932		621,408
Intersegment Eliminations [Member]
Net Sales:
Net sales	(7,603)	(3,601)	(15,562)	(13,216)
Total Assets:
Total assets	(327,332)		(327,332)		(329,140)
Control Devices [Member]
Net Sales:
Net sales	86,345	47,005	185,963	143,855
Operating Income (Loss)
Total operating income (loss)	37,065	(9,656)	47,230	(2,334)
Depreciation and Amortization:
Total depreciation and amortization	3,858	3,639	7,937	7,169
Interest Expense, net:
Total interest expense, net	108	89	240	170
Capital Expenditures:
Capital expenditures	3,380	3,349	4,741	5,663
Total Assets:
Total assets	195,853		195,853		194,433
Control Devices [Member] | Operating Segments [Member]
Net Sales:
Net sales	86,719	48,564	188,317	146,761
Control Devices [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales	374	1,559	2,354	2,906
Electronics [Member]
Net Sales:
Net sales	90,085	45,530	172,855	117,076
Operating Income (Loss)
Total operating income (loss)	(1,807)	(11,042)	(2,680)	(8,170)
Depreciation and Amortization:
Total depreciation and amortization	3,059	2,393	5,868	4,874
Interest Expense, net:
Total interest expense, net	164	313	295	400
Capital Expenditures:
Capital expenditures	461	5,410	3,911	8,060
Total Assets:
Total assets	316,941		316,941		303,914
Electronics [Member] | Operating Segments [Member]
Net Sales:
Net sales	97,314	47,572	186,063	127,386
Electronics [Member] | Inter-Segment Sales [Member]
Net Sales:
Net sales	7,229	2,042	13,208	10,310
Stoneridge Brazil [Member]
Net Sales:
Net sales	14,904	7,010	26,311	21,580
Operating Income (Loss)
Total operating income (loss)	(749)	(879)	(797)	(20)
Depreciation and Amortization:
Total depreciation and amortization	1,041	1,273	2,045	2,723
Interest Expense, net:
Total interest expense, net	(67)	(7)	(97)	3
Capital Expenditures:
Capital expenditures	757	281	1,419	1,414
Total Assets:
Total assets	63,643		63,643		61,350
Stoneridge Brazil [Member] | Operating Segments [Member]
Net Sales:
Net sales	14,904	7,010	26,311	21,580
Unallocated Corporate [Member]
Operating Income (Loss)
Total operating income (loss)	(7,825)	(5,246)	(15,010)	(12,640)
Depreciation and Amortization:
Total depreciation and amortization	685	496	1,374	1,022
Interest Expense, net:
Total interest expense, net	1,655	1,015	3,188	1,867
Capital Expenditures:
Capital expenditures	197	$ 105	698	$ 677
Total Assets:
Total assets	$ 386,827		$ 386,827		$ 390,851