Consolidated Condensed Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Product revenues	$ 160,520	$ 136,153	$ 308,610	$ 265,679
Cost of sales	120,368	101,885	229,407	198,907
Gross margin	40,152	34,268	79,203	66,772
Operating expenses:
Net research and development expenses	12,403	10,228	24,244	20,309
Acquisition transaction expenses	422		1,585
Selling, general and administrative	18,908	15,439	35,164	29,412
Total operating expenses	31,733	25,667	60,993	49,721
Operating income	8,419	8,601	18,210	17,051
Interest expense	(873)	(1,048)	(1,854)	(2,184)
Revaluation of derivatives	638	(1,423)	984	(63)
Foreign currency gain (loss)	(889)	3,289	98	2,778
Income (loss) from equity investment	17	(33)	242	(231)
Other income	164	272	500	549
Earnings before income tax	7,476	9,658	18,180	17,900
Income tax expense	1,948	2,813	2,743	4,958
Net income	5,528	6,845	15,437	12,942
Gain attributable to non-controlling interest	(19)	(1,432)	(1,277)	(2,819)
Net income attributable to Gentherm Incorporated	5,509	5,413	14,160	10,123
Convertible preferred stock dividends	(540)	(1,840)	(1,463)	(4,005)
Net income attributable to common shareholders	$ 4,969	$ 3,573	$ 12,697	$ 6,118
Basic earnings per share	$ 0.15	$ 0.12	$ 0.38	$ 0.23
Diluted earnings per share	$ 0.15	$ 0.12	$ 0.37	$ 0.22
Weighted average number of shares – basic	32,658,000	29,568,000	33,698,000	27,023,000
Weighted average number of shares – diluted	33,167,000	30,103,000	34,143,000	27,641,000