CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]
Net sales	$ 233,511	$ 219,256	$ 712,006	$ 715,788
Costs and expenses:
Cost of goods sold	179,992	168,018	539,538	545,753
Selling, general and administrative	42,814	44,623	139,646	149,954
Operating income	10,705	6,615	32,822	20,081
Interest expense, net	4,544	4,878	13,693	15,395
Equity in earnings of investees	(99)	(207)	(396)	(443)
Other expense (income), net	(269)	972	178	3,375
Income before income taxes	6,529	972	19,347	1,754
Provision for income taxes	1,016	383	3,160	717
Net income	5,513	589	16,187	1,037
Net income (loss) attributable to noncontrolling interest	466	170	1,260	(1,703)
Net income attributable to Stoneridge, Inc.	$ 5,047	$ 419	$ 14,927	$ 2,740
Earnings per share attributable to Stoneridge, Inc.:
Basic (in dollars per share)	$ 0.19	$ 0.02	$ 0.56	$ 0.10
Diluted (in dollars per share)	$ 0.19	$ 0.02	$ 0.55	$ 0.10
Weighted average shares outstanding:
Basic (in shares)	26,691,996	26,430,300	26,663,335	26,358,285
Diluted (in shares)	27,176,784	27,143,817	27,235,803	27,009,469

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.