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Business Acquisitions, and Investments, European OE Business Acquisition (Details) (Standard Motor Products Holdings Ltd [Member]) | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended
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Feb. 28, 2013 USD ($) | Feb. 28, 2013 GBP (£) | Dec. 31, 2013 USD ($) | Feb. 28, 2013 Customer Relationships [Member] USD ($) | Dec. 31, 2013 Customer Relationships [Member] USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Purchase price of business | $ 6,500,000 | £ 4,200,000 |  |  |
Incremental annual revenue from acquired business |  |  | 2,000,000 |  |
Intangible assets acquired in business acquisition |  |  |  | 3,800,000 | 3,800,000
Goodwill acquired in business acquisition | $ 2,000,000 |  | $ 2,027,000 |  |
Estimated useful life of intangible assets |  |  |  | 10 years | 10 years

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