Investments (Tables)

3 Months Ended

Mar. 31, 2014

Investments [Abstract]

Investment Securities Stated at Fair Value

Assets or liabilities that have recurring measurements are shown below as of March 31, 2014, and December 31, 2013:

As of March 31, 2014:

			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	March 31, 2014		(Level 1)		(Level 2)		(Level 3)
Cash & Cash Equivalents	$	374,688,291	$	374,688,291			$	—
Long-Term Investments:
Common Stocks	34,131,093		34,131,093		—		—
Mutual Funds – Equity	74,836,486		74,836,486		—		—
Total	$	483,655,870	$	483,655,870	$	—	$	—

As of December 31, 2013:

			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 1)		(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	$	—	$	—

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 March 31, 2014, and December 31, 2013:

As of March 31, 2014:

			Unrealized
	Cost		Gains		Losses			Market Value
Long-Term Investments:
Common Stocks	$	24,232,617	$	10,024,316	$	(125,840	)	$	34,131,093
Mutual Funds – Equity	58,477,844		16,580,719		(222,077		)	74,836,486
Total	$	82,710,461	$	26,605,035	$	(347,917	)	$	108,967,579

As of December 31, 2013:

			Unrealized
	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

Schedule of Unrealized Loss on Investments

Unrealized losses on investments as of March 31, 2014, are as follows:

	Aggregate Unrealized Losses		Aggregate Fair Value
Less than one year	$	347,917	$	8,715,289

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