Unaudited Condensed Consolidated Statements of Income - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
NET SALES		$ 399,598,744	$ 474,638,584	$ 1,311,328,609	$ 1,158,325,866
COST OF GOODS SOLD		258,698,723	286,401,872	835,531,679	769,556,865
Gross profit		140,900,021	188,236,712	475,796,930	388,769,001
OPERATING EXPENSES:
Engineering, research and development		29,750,973	27,812,730	86,462,112	86,421,121
Selling, general & administrative		22,984,108	21,571,093	67,511,555	65,206,080
Total operating expenses		52,735,081	49,383,823	153,973,667	151,627,201
Income from operations		88,164,940	138,852,889	321,823,263	237,141,800
OTHER INCOME
Investment income		856,351	1,825,257	2,782,900	5,733,939
Other income, net		872,943	2,218,852	2,370,527	3,423,881
Total other income		1,729,294	4,044,109	5,153,427	9,157,820
INCOME BEFORE PROVISION FOR INCOME TAXES		89,894,234	142,896,998	326,976,690	246,299,620
PROVISION FOR INCOME TAXES		13,233,686	25,804,396	50,358,854	42,075,250
NET INCOME		$ 76,660,548	$ 117,092,602	$ 276,617,836	$ 204,224,370
EARNINGS PER SHARE:
Basic (in dollars per share)	[1]	$ 0.32	$ 0.48	$ 1.15	$ 0.83
Diluted (in dollars per share)	[1]	0.32	0.48	1.15	0.82
Cash Dividends Declared per Share (in dollars per share)		$ 0.120	$ 0.12	$ 0.360	$ 0.36

[1] (1) Earnings Per Share has been adjusted to exclude the portion of net income allocated to participating securities as a result of share-based payment awards.