Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2015

Segment Reporting [Abstract]

Schedule of Automotive and Other Segment Reporting

The Company also develops and manufactures variably dimming windows for the aerospace industry and fire protection products for the commercial construction industry, which are combined into the "Other" segment shown below.

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Revenue:
Automotive Products	$	370,504,300	$	329,557,679	$	731,119,589	$	655,921,786
Other	8,754,177		8,879,285		17,076,343		18,254,522
Total	$	379,258,477	$	338,436,964	$	748,195,932	$	674,176,308
Income from operations:
Automotive Products	$	105,242,465	$	96,849,968	$	210,050,524	$	190,294,435
Other	2,890,365		2,985,470		5,790,812		6,718,549
Total	$	108,132,830	$	99,835,438	$	215,841,336	$	197,012,984