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Debt (Schedule of Debt) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019
Debt Instrument [Line Items] |  |
Revolving credit facility | $ 136,000 | $ 126,000
Debt: |  |
Long-term debt | 143,673 |
Total debt | 7,673 | 3,126
Less: current portion | (7,673) | (2,672)
Total long-term debt, net |  | 454
Revolving Credit Facility [Member] |  |
Debt Instrument [Line Items] |  |
Revolving credit facility | $ 136,000 | 126,000
Debt: |  |
Debt, maturity | June 2024 |
Suzhou Short-Term Credit Line [Member] |  |
Debt Instrument [Line Items] |  |
Revolving credit facility | $ 4,521 | 2,154
Debt: |  |
Debt, maturity | September 2021 |
Maximum [Member] | Suzhou Short-Term Credit Line [Member] |  |
Debt: |  |
Outstanding credit lines interest rate | 5.00% |
Minimum [Member] | Line of Credit [Member] |  |
Debt: |  |
Interest rate | 2.85% |
Minimum [Member] | Revolving Credit Facility [Member] |  |
Debt: |  |
Long-term debt, weighted average interest rate | 2.85% |
Minimum [Member] | Suzhou Short-Term Credit Line [Member] |  |
Debt: |  |
Outstanding credit lines interest rate | 3.85% |
Stoneridge Brazil Short-Term Obligations [Member] | Maximum [Member] |  |
Debt: |  |
Short-term debt, weighted average interest rate | 8.80% |
Stoneridge Brazil Short-Term Obligations [Member] | Minimum [Member] |  |
Debt: |  |
Short-term debt, weighted average interest rate | 5.64% |
Sweden Short-Term Note [Member] |  |
Debt Instrument [Line Items] |  |
Revolving credit facility | $ 1,591 |
Debt: |  |
Debt, maturity | January 2021 |
Outstanding credit lines interest rate | 2.60% |
Stoneridge Brazil Short-Term Obligations [Member] |  |
Debt Instrument [Line Items] |  |
Short-term debt | $ 1,561 |
Stoneridge Brazil Short-Term Obligations [Member] | Stoneridge Brazil Short-Term Obligations [Member] |  |
Debt: |  |
Debt, maturity | June 2021 - November 2021 |
Stoneridge Brazil Long-Term Notes [Member] |  |
Debt: |  |
Long-term debt |  | $ 972

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