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Commitments and Contingencies (Narrative) (Details) € in Thousands, BRL in Thousands, $ in Thousands | 6 Months Ended | 24 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2015 USD ($) | Dec. 31, 2010 | Jun. 30, 2015 EUR (€) | Jun. 30, 2015 BRL | Jun. 30, 2015 USD ($) | Dec. 31, 2014 BRL | Dec. 31, 2014 USD ($)
Short-term Debt [Line Items] |  |  |  |  |  |  |
Environmental remediation costs incurred | $ 155 |  |  |  |  |  |
Environmental remediation accrued undiscounted liability |  |  |  |  | $ 715 |  | $ 876
Percentage of state value added tax |  | 25.00% |  |  |  |  |
Product warranty and recall accrual |  |  |  |  | 924 |  | 1,204
Electronics [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Loss contingency, estimate of possible loss |  |  | € 14,000 |  | 15,600 |  |
Accrued Expenses and Other Current Liabilities [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Environmental remediation accrued undiscounted liability |  |  |  |  | 651 |  | 813
Letter of Credit [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Line of credit |  |  |  |  | 2,000 |  |
PST Eletronicaltda [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Loss contingency, estimate of possible loss |  |  |  | BRL 22,194 | 7,200 | BRL 37,237 | $ 14,000
Loss contingencies aggregate tax assessment not accrued |  |  |  | 92,500 | 29,800 |  |
PST Eletronicaltda [Member] | Value Added Tax [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Loss contingencies aggregate tax assessment not accrued |  |  |  | 13,200 | 4,200 |  |
PST Eletronicaltda [Member] | Interest On Tax [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Loss contingencies aggregate tax assessment not accrued |  |  |  | 11,400 | 3,700 |  |
PST Eletronicaltda [Member] | Penalties On Tax [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Loss contingencies aggregate tax assessment not accrued |  |  |  | BRL 67,900 | $ 21,900 |  |
Minda Stoneridge Instruments Ltd [Member] |  |  |  |  |  |  |
Short-term Debt [Line Items] |  |  |  |  |  |  |
Equity method investment, ownership percentage |  |  | 49.00% | 49.00% | 49.00% |  |

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