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Income Taxes (Schedule of Effective Income Tax Rate Reconciliation) (Details)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Taxes [Abstract]
Statutory U.S. federal income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	1.90%	0.20%
Tax credits	(0.80%)	(2.80%)	(1.30%)
Foreign rate differential	(4.70%)	(3.30%)	0.20%
Reduction (increase) of income tax accruals	0.10%	(0.50%)	0.20%
Tax on foreign dividends, net of foreign tax credits			(0.10%)
Reduction of deferred taxes	(1.30%)	5.50%
Valuation allowances	(121.60%)	(36.00%)	(2.10%)
Loss of domestic flow-through entity not attributable to Stoneridge, Inc.			33.90%
Non-deductible compensation		(1.50%)	1.00%
Other	(1.40%)	0.70%	(0.30%)
Effective income tax rate	(92.80%)	(2.70%)	(3.50%)

X

- Definition

The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the change in income tax accruals under enacted tax laws

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the reduction of deferred taxes under enacted tax laws

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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