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Debt instrument covenant uninsured asset losses maximum amount.

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Increase in maximum borrowing capacity of credit facility

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Line Of Credit Facility Required Minimum Liquidity

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Minimum interest coverage ratio

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Fair value of the amount outstanding under the credit facility.

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The effective interest rate at the end of the reporting period.

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The effective interest rate during the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Weighted average interest rate of long-term debt outstanding calculated at point in time.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Weighted average interest rate of short-term debt outstanding calculated at point in time.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Debt (Narrative) (Details) ¥ in Thousands, kr in Thousands, R$ in Thousands, $ in Thousands		12 Months Ended
	Jun. 30, 2020	Dec. 31, 2020 USD ($)	Dec. 31, 2020 BRL (R$)	Dec. 31, 2020 SEK (kr)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2020 SEK (kr)	Dec. 31, 2020 CNY (¥)	Jun. 26, 2020 USD ($)	Dec. 31, 2019 BRL (R$)	Dec. 31, 2019 CNY (¥)	Jun. 05, 2019 USD ($)
Debt Instrument [Line Items]
Credit Facility covenant compliance		The Company was in compliance with all credit facility covenants at December 31, 2020 and 2019.	The Company was in compliance with all credit facility covenants at December 31, 2020 and 2019.	The Company was in compliance with all credit facility covenants at December 31, 2020 and 2019.
Borrowings outstanding		$ 136,000			$ 126,000
Subsidiary borrowed		71,500			112,000	$ 27,500
Repayments of credit line		61,500			82,000	$ 52,500
Outstanding letters of credit		1,720			1,768
Cash and cash equivalents		73,919			69,403
2021		7,673
2024		136,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Capitalized deferred financing costs					1,366
Line of credit facility, maximum borrowing capacity												$ 400,000
Increase in maximum borrowing capacity of credit facility												$ 150,000
Borrowings outstanding		$ 136,000			126,000
Write off of deferred debt issuance cost					275
Debt instrument covenant default of other debt maximum amount					30,000
Debt instrument covenant uninsured asset losses maximum amount					30,000
Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Long-term debt, weighted average interest rate		2.85%					2.85%	2.85%
Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 2,435			2,136		kr 20,000
Line of credit					0
Suzhou Short-Term Credit Line [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		7,663			5,746			¥ 50,000			¥ 40,000
Borrowings outstanding		$ 4,521			$ 2,154
Outstanding credit lines weighted-average interest rate		4.32%			4.80%		4.32%	4.32%		4.80%	4.80%
Suzhou Short-Term Credit Line [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Outstanding credit lines interest rate		5.00%	5.00%	5.00%
Suzhou Short-Term Credit Line [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Outstanding credit lines interest rate		3.85%	3.85%	3.85%
Bank Acceptance Draft Credit Line [Member]
Debt Instrument [Line Items]
Credit facility, borrowing capacity		$ 2,299			$ 2,154			¥ 15,000			¥ 15,000
Borrowings outstanding		414			150
Stoneridge Brazil?s Bank Overdraft Credit
Debt Instrument [Line Items]
Subsidiary borrowed and repaid		1,306	R$ 7,150
Amendment Number One [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Capitalized deferred financing costs		$ 1,079
Credit facility required minimum liquidity									$ 150,000
Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Quarter Ended December 31, 2020 [Member]
Debt Instrument [Line Items]
Minimum interest coverage ratio									2.75%
Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Quarter Ended March 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum interest coverage ratio									3.25%
Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Quarters Ended After March 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum interest coverage ratio									3.50%
Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Cash and cash equivalents									$ 130,000
Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.50%
Stoneridge Brazil [Member]
Debt Instrument [Line Items]
Long-term debt, weighted average interest rate		6.79%					6.79%	6.79%
Stoneridge Brazil [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 1,244								R$ 5,000
Borrowings outstanding					$ 0
Stoneridge Brazil [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
2021		1,561
Specified Hedge Borrowings [Member] \| Amendment Number One [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Borrowings outstanding		50,000
Specified Hedge Borrowings [Member] \| Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	0.00%
Electronics [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Borrowings outstanding		1,591					kr 13,072
Subsidiary borrowed		38,092		kr 312,921
Repayments of credit line		$ 36,501		kr 299,849
Stoneridge Brazil Short-Term Obligations [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Short-term debt, weighted average interest rate		8.80%					8.80%	8.80%
Stoneridge Brazil Short-Term Obligations [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Short-term debt, weighted average interest rate		5.64%					5.64%	5.64%