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Acquisition (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2011 | Jun. 30, 2011
Net sales | $ 253,113 | $ 499,395
Net income attributable to Stoneridge, Inc. and subsidiaries | $ 3,029 | $ 5,516

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