Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013		Dec. 31, 2012
CURRENT ASSETS
Cash and cash equivalents	$ 226,676,955		$ 389,678,664
Short-term investments	0		60,802,856
Accounts receivable, net	152,437,232		109,579,693
Inventories	117,406,559		159,930,266
Prepaid expenses and other	27,330,903		24,671,561
Total current assets	523,851,649		744,663,040
PLANT AND EQUIPMENT—NET	351,066,630		349,938,172
OTHER ASSETS
Goodwill	337,670,463		0
Long-term investments	114,270,623		141,834,034
Patents and other assets, net	370,268,798		29,256,089
Total other assets	822,209,884		171,090,123
Total assets	1,697,128,163		1,265,691,335
CURRENT LIABILITIES
Accounts payable	50,339,389		43,200,002
Accrued liabilities	70,251,042		44,757,440
Total current liabilities	120,590,431		87,957,442
LONG TERM DEBT	267,500,000		0
DEFERRED INCOME TAXES	53,730,295		56,773,337
TOTAL LIABILITIES	441,820,726		144,730,779
SHAREHOLDERS’ INVESTMENT
Common stock	8,683,729		8,584,581
Additional paid-in capital	455,997,100		418,766,010
Retained earnings	768,527,760		676,039,254
Accumulated other comprehensive income	22,098,848	[1]	17,570,711
Total shareholders’ investment	1,255,307,437		1,120,960,556
Total liabilities and shareholders’ investment	$ 1,697,128,163		$ 1,265,691,335

[1] All amounts are shown net of tax. Amounts in parentheses indicate debits.