Unaudited Condensed Consolidated Balance Sheets - USD ($)	Sep. 30, 2021	Dec. 31, 2020	[1]
CURRENT ASSETS
Cash and cash equivalents	$ 269,965,105	$ 423,371,036
Short-term investments	6,936,547	27,164,369
Accounts receivable, net	241,225,710	284,925,335
Inventories	292,599,881	226,291,843
Prepaid expenses and other	63,979,883	17,577,981
Total current assets	874,707,126	979,330,564
PLANT AND EQUIPMENT—NET	451,811,914	468,135,135
OTHER ASSETS
Goodwill	314,805,654	311,922,787
Long-term investments	204,671,558	162,028,068
Intangible assets, net	243,163,539	249,748,127
Patents and other assets, net	27,268,962	26,776,489
Total other assets	789,909,713	750,475,471
Total assets	2,116,428,753	2,197,941,170
CURRENT LIABILITIES
Accounts payable	100,532,642	84,784,423
Accrued liabilities	91,909,057	92,952,434
Total current liabilities	192,441,699	177,736,857
OTHER NON-CURRENT LIABILITIES	18,680,307	17,300,442
DEFERRED INCOME TAXES	17,676,461	38,960,743
Total liabilities	228,798,467	233,998,042
SHAREHOLDERS’ INVESTMENT
Common stock	14,192,076	14,621,572
Additional paid-in capital	865,063,949	852,771,508
Retained earnings	1,005,103,661	1,089,698,996
Accumulated other comprehensive income	3,270,600	6,851,052
Total shareholders’ investment	1,887,630,286	1,963,943,128
Total liabilities and shareholders’ investment	$ 2,116,428,753	$ 2,197,941,170

[1] The condensed consolidated balance sheet at December 31, 2020 has been derived from the audited consolidated 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.