Debt (Schedule of Debt) (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Revolving credit facility	$ 161,000	$ 126,000
Debt:
Total debt	2,771	3,126
Less: current portion	(2,516)	(2,672)
Total long-term debt, net	255	454
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility	$ 161,000	126,000
Debt:
Debt, maturity	June 2024
Suzhou Short-Term Credit Line [Member]
Debt Instrument [Line Items]
Revolving credit facility	$ 2,118	2,154
Debt:
Debt, maturity	August 2020
Maximum [Member] \| Revolving Credit Facility [Member]
Debt:
Long-term debt, weighted average interest rate	2.04%
Maximum [Member] \| Suzhou Short-Term Credit Line [Member]
Debt:
Outstanding credit lines interest rate	5.00%
Minimum [Member] \| Revolving Credit Facility [Member]
Debt:
Long-term debt, weighted average interest rate	1.67%
Minimum [Member] \| Suzhou Short-Term Credit Line [Member]
Debt:
Outstanding credit lines interest rate	4.70%
Stoneridge Brazil Long-Term Notes [Member]
Debt:
Long-term debt	$ 653	$ 972
Debt, maturity	November 2021
Interest rate	7.00%

Amount of short-term and long-term debt and lease obligation.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Fair value of the amount outstanding under the credit facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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