Segment Reporting (Schedule of Automotive and Other Segment Reporting) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenue	$ 399,598,744	$ 474,638,584	$ 1,311,328,609	$ 1,158,325,866
Income (loss) from operations	88,164,940	138,852,889	321,823,263	237,141,800
Automotive Products
Segment Reporting Information [Line Items]
Revenue	391,338,185	464,673,587	1,287,578,273	1,126,597,020
Income (loss) from operations	89,121,170	138,428,628	325,579,533	233,149,936
Other
Segment Reporting Information [Line Items]
Revenue	8,260,559	9,964,997	23,750,336	31,728,846
Income (loss) from operations	$ (956,230)	$ 424,261	$ (3,756,270)	$ 3,991,864