Investments	6 Months Ended
Jun. 30, 2013
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments and Joint Ventures Disclosure [Text Block]	(13) Investments Minda Stoneridge Instruments Ltd. The Minda Stoneridge Instruments Ltd. ("Minda") joint venture at June 30, 2013 is an unconsolidated joint venture and is accounted for under the equity method of accounting. The Company has a 49% interest in Minda, a company based in India that manufactures electronics, instrumentation equipment and sensors primarily for the motorcycle and commercial vehicle market. The Company's investment in Minda recorded as a component of investments and other long-term assets, net on the condensed consolidated balance sheets, was $6,027 and $6,215 at June 30, 2013 and December 31, 2012, respectively. Equity in earnings of Minda included in the condensed consolidated statements of operations was $96 and $97, for the three months ended June 30, 2013 and 2012, respectively. For the six months ended June 30, 2013 and 2012, equity in earnings of Minda was $297 and $236, respectively. PST Eletrônica Ltda. The Company has a 74% controlling interest in PST. Noncontrolling interest in PST decreased by $2,867 to $41,209 at June 30, 2013 due to a change in foreign currency translation of $3,455 and a dividend of $211 partially offset by a proportionate share of its net income of $799 for the six months ended June 30, 2013. Comprehensive loss related to the PST noncontrolling interest was $3,468 and $6,453 for the three months ended June 30, 2013 and 2012, respectively. Comprehensive loss related to the PST noncontrolling interest was $2,656 and $4,978 for the six months ended June 30, 2013 and 2012, respectively.

Investments

6 Months Ended

Jun. 30, 2013

Equity Method Investments and Joint Ventures [Abstract]

Equity Method Investments and Joint Ventures Disclosure [Text Block]

(13) Investments

Minda Stoneridge Instruments Ltd.

The Minda Stoneridge Instruments Ltd. ("Minda") joint venture at June 30, 2013 is an unconsolidated joint venture and is accounted for under the equity method of accounting. The Company has a 49% interest in Minda, a company based in India that manufactures electronics, instrumentation equipment and sensors primarily for the motorcycle and commercial vehicle market. The Company's investment in Minda recorded as a component of investments and other long-term assets, net on the condensed consolidated balance sheets, was $6,027 and $6,215 at June 30, 2013 and December 31, 2012, respectively. Equity in earnings of Minda included in the condensed consolidated statements of operations was $96 and $97, for the three months ended June 30, 2013 and 2012, respectively. For the six months ended June 30, 2013 and 2012, equity in earnings of Minda was $297 and $236, respectively.

PST Eletrônica Ltda.

The Company has a 74% controlling interest in PST. Noncontrolling interest in PST decreased by $2,867 to $41,209 at June 30, 2013 due to a change in foreign currency translation of $3,455 and a dividend of $211 partially offset by a proportionate share of its net income of $799 for the six months ended June 30, 2013. Comprehensive loss related to the PST noncontrolling interest was $3,468 and $6,453 for the three months ended June 30, 2013 and 2012, respectively. Comprehensive loss related to the PST noncontrolling interest was $2,656 and $4,978 for the six months ended June 30, 2013 and 2012, respectively.