Segment Reporting (Schedule of Automotive and Other Segment Reporting) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues	$ 1,731,169,929	$ 1,688,189,405	$ 1,858,897,406
Income (Loss) from Operations	409,781,978	399,556,092	488,537,604
Assets	2,131,391,166	2,197,941,170	2,168,803,193
Depreciation & Amortization	99,112,019	104,739,900	104,702,974
Capital Expenditures	68,835,047	51,706,541	84,580,255
Corporate
Segment Reporting Information [Line Items]
Assets	601,331,969	728,248,906	689,772,238
Depreciation & Amortization	5,682,221	6,519,815	6,700,141
Capital Expenditures	8,951,198	15,309,150	19,338,698
Automotive Products
Segment Reporting Information [Line Items]
Revenues	1,697,188,034	1,648,198,143	1,810,536,887
Income (Loss) from Operations	414,185,075	393,979,860	473,546,112
Automotive Products | Operating Segments
Segment Reporting Information [Line Items]
Assets	1,495,298,453	1,436,374,596	1,463,030,286
Depreciation & Amortization	92,516,347	97,530,191	97,520,972
Capital Expenditures	58,415,887	34,926,686	63,537,512
Other
Segment Reporting Information [Line Items]
Revenues	33,981,895	39,991,262	48,360,519
Income (Loss) from Operations	(4,403,097)	5,576,232	14,991,492
Other | Operating Segments
Segment Reporting Information [Line Items]
Assets	34,760,744	33,317,668	16,000,669
Depreciation & Amortization	913,451	689,894	481,861
Capital Expenditures	1,467,962	1,470,705	1,704,045
United States | Automotive Products
Segment Reporting Information [Line Items]
Revenues	542,690,346	519,337,271	569,939,756
Germany | Automotive Products
Segment Reporting Information [Line Items]
Revenues	234,994,551	228,652,827	296,276,971
Japan | Automotive Products
Segment Reporting Information [Line Items]
Revenues	211,417,475	216,100,530	225,577,146
Mexico | Automotive Products
Segment Reporting Information [Line Items]
Revenues	111,761,245	127,157,684	160,967,900
Other Countries | Automotive Products
Segment Reporting Information [Line Items]
Revenues	$ 596,324,417	$ 556,949,831	$ 557,775,114