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Debt instrument covenant uninsured asset losses maximum amount.

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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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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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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 requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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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		9 Months Ended
	Jun. 30, 2020	Sep. 30, 2020 USD ($)	Sep. 30, 2020 BRL (R$)	Sep. 30, 2020 SEK (kr)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 SEK (kr)	Sep. 30, 2020 CNY (¥)	Jun. 26, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 BRL (R$)	Dec. 31, 2019 SEK (kr)	Dec. 31, 2019 CNY (¥)	Jun. 05, 2019 USD ($)	Sep. 12, 2014 USD ($)	Nov. 02, 2007 USD ($)
Debt Instrument [Line Items]
Borrowings outstanding		$ 144,000							$ 126,000
Subsidiary borrowed		71,500			$ 81,500
Repayments of credit line		53,500			69,000
Cash and cash equivalents		68,288							69,403
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Capitalized deferred financing costs					1,366
Line of credit facility, maximum borrowing capacity													$ 400,000	$ 300,000
Increase in maximum borrowing capacity of credit facility													$ 150
Borrowings outstanding		$ 144,000							126,000
Maximum leverage ratio		350.00%				350.00%	350.00%
Minimum interest coverage ratio		350.00%				350.00%	350.00%
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%
Asset-Based Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity															$ 100,000
Suzhou Short-Term Credit Line [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 7,364					¥ 50,000					¥ 40,000
Borrowings outstanding		$ 4,419							$ 2,154
Outstanding credit lines weighted-average interest rate		4.33%				4.33%	4.33%		4.80%	4.80%	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		$ 2,209					¥ 15,000		$ 2,154			¥ 15,000
Borrowings outstanding		150
Letter of Credit [Member]
Debt Instrument [Line Items]
Outstanding letters of credit		$ 1,720							1,768
Stoneridge Brazil Long-Term Notes [Member]
Debt Instrument [Line Items]
Long-term debt, weighted average interest rate		8.80%				8.80%	8.80%
Stoneridge Brazil Short-Term Notes [Member]
Debt Instrument [Line Items]
Short-term debt, weighted average interest rate		5.64%				5.64%	5.64%
Credit Facility [Member]
Debt Instrument [Line Items]
Credit Facility covenant compliance		The Company was in compliance with all credit facility covenants at September 30, 2020 and December 31, 2019	The Company was in compliance with all credit facility covenants at September 30, 2020 and December 31, 2019	The Company was in compliance with all credit facility covenants at September 30, 2020 and December 31, 2019
Stoneridge Brazil?s Bank Overdraft Credit
Debt Instrument [Line Items]
Credit facility, borrowing capacity									1,244	R$ 5,000
Subsidiary borrowed and repaid		$ 1,306	R$ 7,150
Outstanding letters of credit									0
Amendment Number One [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Capitalized deferred financing costs		1,056
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								275.00%
Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Quarter Ended March 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum interest coverage ratio								325.00%
Amendment Number One [Member] \| Revolving Credit Facility [Member] \| Quarters Ended After March 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum interest coverage ratio								350.00%
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] \| Term Loan [Member]
Debt Instrument [Line Items]
Principal repayment in next twelve months		1,359
Principal repayments following year		59
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]
Line of credit facility, maximum borrowing capacity		2,234				kr 20,000			2,136		kr 20,000
Borrowings outstanding		1,737				kr 15,560			0
Subsidiary borrowed		23,977		kr 214,701
Repayments of credit line		$ 22,240		kr 199,141
Suzhou Short-Term Note [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity									$ 5,746