Summary of Significant Accounting and Reporting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Schedule of Allowance For Doubtful Accounts

The following table presents the activity in the Company’s allowance for doubtful accounts:



	Beginning Balance		Net Additions/ (Reductions) to Costs and Expenses			Deductions and Other Adjustments			Ending Balance
Year Ended December 31, 2013:
Allowance for Doubtful Accounts	$	3,400,000	$	—		$	197,612		$	3,202,388
Year Ended December 31, 2012:
Allowance for Doubtful Accounts	$	3,400,000	$	(577	)	577*			$	3,400,000
Year Ended December 31, 2011:
Allowance for Doubtful Accounts	$	4,300,000	$	(802,929	)	$	(97,071	)*	$	3,400,000

*Represents excess recoveries and other adjustments over accounts written off.

Schedule of Assets or Liabilities Having Recurring Measurements

Assets or liabilities that have recurring fair value measurements are shown below as of December 31, 2013 and December 31, 2012:



			Fair Value Measurements at Reporting Date Using
	Total as of		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Description	December 31, 2013		(Level I)		(Level 2)		(Level 3)
Cash & Cash Equivalents	$	309,591,724	$	309,591,724	$	—	$	—
Long-Term Investments:
Common Stocks	33,282,439		33,282,439		—		—
Mutual Funds – Equity	73,723,083		73,723,083		—		—
Total	$	416,597,246	$	416,597,246	$	—	$	—



			Fair Value Measurements at Reporting Date Using
	Total as of		Quoted Prices in Active Markets for Identical Assets		Significant Other Observable Inputs		Significant Unobservable Inputs
Description	December 31, 2012		(Level I)		(Level 2)		(Level 3)
Cash & Cash Equivalents	$	389,678,664	$	389,678,664	$	—	$	—
Short-Term Investments:
Certificate of Deposit	510,881		—		510,881		—
Government Securities	38,522,471		—		38,522,471		—
U.S. Treasury Notes	15,020,350		—		15,020,350		—
Corporate Bonds	6,563,228		—		6,563,228		—
Other	185,926		185,926		—		—
Long-Term Investments:
Corporate Bonds	2,180,780		—		2,180,780		—
Common Stocks	53,283,201		53,283,201		—		—
Mutual Funds – Equity	86,109,053		86,109,053		—		—
Other – Equity	261,000		261,000		—		—
Total	$	592,315,554	$	529,517,844	$	62,797,710	$	—

Schedule of Amortized Cost, Unrealized Gains And Losses, And Market Value of Investment Securities

The amortized cost, unrealized gains and losses, and market value of investment securities are shown as of December 31, 2013 and 2012:



	Unrealized
2013	Cost		Gains			Losses				Market Value
Long-Term Investments:
Common Stocks	22,799,035		10,532,007			(48,603		)		33,282,439
Mutual Funds-Equity	54,256,577		19,466,506			—				73,723,083
Total	$	77,055,612	$	29,998,513	—	$	(48,603	)	—	$	107,005,522



	Unrealized
2012	Cost		Gains		Losses			Market Value
Short-Term Investments:
Certificate of Deposit	$	510,881	$	—	$	—		$	510,881
Government Securities	$	38,514,411	$	9,004	$	(944	)	$	38,522,471
U.S. Treasury Notes	15,018,810		2,602		(1,062		)	15,020,350
Corporate Bonds	6,529,758		33,470		—			6,563,228
Other	185,926		—		—			185,926
Long-Term Investments:
Corporate Bonds	2,174,948		5,832		—			2,180,780
Common Stocks	40,893,121		12,781,501		(391,421		)	53,283,201
Mutual Funds-Equity	75,321,640		11,082,714		(295,301		)	86,109,053
Other-Equity	238,506		22,494		—			261,000
Total	$	179,388,001	$	23,937,617	(688,728		)	$	202,636,890

Schedule of Unrealized Losses on Investments

Unrealized losses on investments as of December 31, 2013 are as follows:



	Aggregate Unrealized Losses		Aggregate Fair Value
Less than one year	$	48,603	$	1,886,080

Unrealized losses on investments as of December 31, 2012 are as follows:



	Aggregate Unrealized Losses		Aggregate Fair Value
Less than one year	$	688,728	$	22,887,686

Schedule of Inventories

Inventories consisted of the following as of December 31, 2013 and 2012.



	2013		2012
Raw materials	$	75,081,810	$	114,750,525
Work-in-process	21,409,976		24,588,734
Finished goods	23,582,378		20,591,007
Total Inventory	$	120,074,164	$	159,930,266

Schedule of Earnings Per Share Basic and Diluted

The following table reconciles the numerators and denominators used in the calculations of basic and diluted earnings per share (EPS) for each of the last three years:



	2013		2012		2011
Numerators:
Numerator for both basic and diluted EPS, net income	$	222,929,949	$	168,586,840	$	164,668,228
Denominators:
Denominator for basic EPS, weighted-average common shares outstanding	143,460,018		143,097,530		142,492,699
Potentially dilutive shares resulting from stock option plans	814,153		870,501		1,784,109
Denominator for diluted EPS	144,274,171		143,968,031		144,276,808