CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net sales	$ 99,545	$ 222,241	$ 282,511	$ 440,538
Costs and expenses:
Cost of goods sold	86,291	165,414	223,860	322,858
Selling, general and administrative	27,693	27,522	57,196	63,110
Gain on disposal of Non-core Products, net		(33,921)		(33,599)
Design and development	12,384	14,040	24,619	27,284
Operating income	(26,823)	49,186	(23,164)	60,885
Interest expense, net	1,410	1,001	2,440	2,004
Equity in loss (earnings) of investee	231	(548)	(226)	(912)
Other income , net	(9)	(97)	(1,626)	(529)
(Loss) income before income taxes	(28,455)	48,830	(23,752)	60,322
(Benefit) provision for income taxes	(6,721)	9,066	(5,508)	10,901
Net (loss) income	(21,734)	39,764	(18,244)	49,421
Net income attributable to Stoneridge, Inc.	$ (21,734)	$ 39,764	$ (18,244)	$ 49,421
(Loss) earnings per share:
Basic (in dollars per share)	$ (0.81)	$ 1.43	$ (0.67)	$ 1.75
Diluted (in dollars per share)	$ (0.81)	$ 1.41	$ (0.67)	$ 1.72
Weighted-average shares outstanding:
Basic (in shares)	26,952,336	27,887,157	27,092,186	28,208,229
Diluted (in shares)	26,952,336	28,293,547	27,092,186	28,715,725