Segment Reporting (Schedule of Automotive and Other Segment Reporting) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenue	$ 229,925,556	$ 468,711,354	$ 683,687,281	$ 937,300,351
Income from operations	(6,738,256)	127,904,966	98,288,910	249,501,298
Automotive Products
Segment Reporting Information [Line Items]
Revenue	222,067,846	456,625,064	661,923,434	912,423,707
Income from operations	(6,054,235)	124,295,223	94,721,308	241,247,925
Other
Segment Reporting Information [Line Items]
Revenue	7,857,710	12,086,290	21,763,847	24,876,644
Income from operations	$ (684,021)	$ 3,609,743	$ 3,567,602	$ 8,253,373