Segment Reporting (Schedule of Automotive and Other Segment Reporting) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 493,648,000	$ 493,637,000	$ 463,423,000	$ 468,251,000	$ 419,841,000	$ 399,599,000	$ 428,005,000	$ 483,725,000	$ 1,918,958,043	$ 1,731,169,929	$ 1,688,189,405
Income (loss) from operations	94,118,000	$ 86,792,000	$ 85,791,000	$ 103,306,000	87,959,000	$ 88,165,000	$ 99,925,000	$ 133,734,000	370,006,126	409,781,978	399,556,092
Assets	2,327,229,924				2,131,391,166				2,327,229,924	2,131,391,166	2,197,941,170
Depreciation and amortization									96,568,443	99,112,019	104,739,900
Capital expenditures									146,433,123	68,835,047	51,706,541
Corporate
Segment Reporting Information [Line Items]
Assets	613,569,742				601,331,969				613,569,742	601,331,969	728,248,906
Depreciation and amortization									5,481,846	5,682,221	6,519,815
Capital expenditures									2,909,707	8,951,198	15,309,150
Automotive Products
Segment Reporting Information [Line Items]
Revenues									1,874,742,458	1,697,188,034	1,648,198,143
Income (loss) from operations									372,490,748	414,185,075	393,979,860
Automotive Products | Operating Segments
Segment Reporting Information [Line Items]
Assets	1,670,634,277				1,495,298,453				1,670,634,277	1,495,298,453	1,436,374,596
Depreciation and amortization									90,030,087	92,516,347	97,530,191
Capital expenditures									141,166,506	58,415,887	34,926,686
Other
Segment Reporting Information [Line Items]
Revenues									44,215,585	33,981,895	39,991,262
Income (loss) from operations									(2,484,622)	(4,403,097)	5,576,232
Other | Operating Segments
Segment Reporting Information [Line Items]
Assets	$ 43,025,905				$ 34,760,744				43,025,905	34,760,744	33,317,668
Depreciation and amortization									1,056,510	913,451	689,894
Capital expenditures									2,356,910	1,467,962	1,470,705
United States | Automotive Products
Segment Reporting Information [Line Items]
Revenues									579,531,611	542,690,346	519,337,271
Germany | Automotive Products
Segment Reporting Information [Line Items]
Revenues									266,498,398	234,994,551	228,652,827
Japan | Automotive Products
Segment Reporting Information [Line Items]
Revenues									234,888,653	211,417,475	216,100,530
Mexico | Automotive Products
Segment Reporting Information [Line Items]
Revenues									121,553,711	111,761,245	127,157,684
Other Countries | Automotive Products
Segment Reporting Information [Line Items]
Revenues									$ 672,270,085	$ 596,324,417	$ 556,949,831