Unaudited Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2020	Dec. 31, 2019	[1]
CURRENT ASSETS
Cash and cash equivalents	$ 400,499,542	$ 296,321,622
Short-term investments	52,578,480	140,384,053
Accounts receivable, net	268,457,875	235,410,326
Inventories	233,358,102	248,941,855
Prepaid expenses and other	20,424,567	29,319,036
Total current assets	975,318,566	950,376,892
PLANT AND EQUIPMENT—NET	474,019,432	498,316,100
OTHER ASSETS
Goodwill	311,216,556	307,365,845
Long-term investments	159,011,362	139,909,323
Intangible assets, net	247,911,399	250,375,000
Patents and other assets, net	24,997,791	22,460,033
Total other assets	743,137,108	720,110,201
Total assets	2,192,475,106	2,168,803,193
CURRENT LIABILITIES
Accounts payable	90,246,791	97,553,917
Current portion of long-term debt	25,000,000	0
Accrued liabilities	121,242,379	74,292,883
Total current liabilities	236,489,170	171,846,800
OTHER NON-CURRENT LIABILITIES	15,071,701	7,414,424
DEFERRED INCOME TAXES	45,301,936	51,454,149
Total liabilities	296,862,807	230,715,373
SHAREHOLDERS’ INVESTMENT
Common stock	14,703,703	15,076,651
Additional paid-in capital	830,408,683	807,928,139
Retained earnings	1,046,052,853	1,116,372,133
Accumulated other comprehensive income (loss)	4,447,060	(1,289,103)
Total shareholders’ investment	1,895,612,299	1,938,087,820
Total liabilities and shareholders’ investment	$ 2,192,475,106	$ 2,168,803,193

[1] The condensed consolidated balance sheet at December 31, 2019 has been derived from the audited financial statements at that date but does not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.