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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Taxes [Abstract]      
Statutory U.S. deferral income tax rate 35.00% 35.00% 35.00%
State income taxes, net of federal tax benefit 2.70% 3.80% 0.20%
Tax credits (4.70%)   (1.40%)
Foreign rate differential (16.50%) (16.10%) (1.40%)
Reduction (increase) of income tax accruals (1.30%) 0.50% 0.10%
Tax on foreign dividends, net of foreign tax credits (3.20%) 45.60% 1.10%
Reduction of deferred taxes 3.60% 6.40% 0.30%
Valuation allowances 2.20% (78.30%) (1.40%)
Loss of domestic flow-through entity not attributable to Stoneridge, Inc.   6.80% 1.90%
Non-deductible compensation 3.40% 12.80% 0.30%
Other (0.80%) 1.30% 1.70%
Effective income tax rate 20.40% 17.80% 36.40%