CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Net sales	$ 165,289	$ 162,099	$ 328,114	$ 323,430
Costs and expenses:
Cost of goods sold	119,343	113,814	238,520	227,007
Selling, general and administrative	28,482	31,617	59,224	62,383
Design and development	10,049	10,589	19,829	21,527
Goodwill impairment		29,300		29,300
Operating income (loss)	7,415	(23,221)	10,541	(16,787)
Interest expense, net	1,658	5,072	2,936	10,001
Equity in earnings of investee	(143)	(144)	(332)	(382)
Other (income) expense, net	(47)	330	(260)	2,246
Income (loss) before income taxes from continuing operations	5,947	(28,479)	8,197	(28,652)
Provision (benefit) for income taxes from continuing operations	(381)	90	(234)	385
Income (loss) from continuing operations	6,328	(28,569)	8,431	(29,037)
Discontinued operations:
Income from discontinued operations, net of tax		594		1,647
Gain (loss) on disposal, net of tax	55	(1,138)	(113)	(1,233)
Income (loss) from discontinued operations	55	(544)	(113)	414
Net income (loss)	6,383	(29,113)	8,318	(28,623)
Net loss attributable to noncontrolling interest	(596)	(7,221)	(1,005)	(8,199)
Net income (loss) attributable to Stoneridge, Inc.	$ 6,979	$ (21,892)	$ 9,323	$ (20,424)
Earnings (loss) per share attributable to continuing operations attributable to Stoneridge, Inc.:
Basic (in dollars per share)	$ 0.26	$ (0.79)	$ 0.35	$ (0.78)
Diluted (in dollars per share)	0.25	(0.79)	0.34	(0.78)
Earnings (loss) per share attributable to discontinued operations:
Basic (in dollars per share)	0.00	(0.02)	0.00	0.02
Diluted (in dollars per share)	0.00	(0.02)	0.00	0.02
Earnings (loss) per share attributable to Stoneridge, Inc.:
Basic (in dollars per share)	0.26	(0.81)	0.35	(0.76)
Diluted (in dollars per share)	$ 0.25	$ (0.81)	$ 0.34	$ (0.76)
Weighted-average shares outstanding:
Basic (in shares)	27,307,864	26,934,027	27,226,868	26,894,022
Diluted (in shares)	27,944,924	26,934,027	27,862,571	26,894,022

Interest expense incurred and charged against earnings during the reporting period on all debt, including interest on short-term obligations and long-term debt, and amortization of debt issuance costs and debt discounts. Interest expense is net of interest income earned during the reporting period.

No definition available.