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Investments
6 Months Ended
Jun. 30, 2018
Investments [Abstract]  
Investments Investments
The Company follows the provisions of ASC 820, “Fair Value Measurements and Disclosures” for its financial assets and liabilities, and for its non-financial assets and liabilities subject to fair value measurements. ASC 820 provides a framework for measuring the fair value of assets and liabilities. This framework is intended to provide increased consistency in how fair value determinations are made under various existing accounting standards that permit, or in some cases, require estimates of fair-market value. This standard also expanded financial statement disclosure requirements about a company’s use of fair-value measurements, including the effect of such measurement on earnings. The cost of securities sold is based on the specific identification method.
The Company’s investments in common stock are stated at fair value based on quoted market prices, and as such are classified as Level 1 assets. The Company determines the fair value of its government securities and corporate bonds by utilizing monthly valuation statements that are provided by its broker. The broker determines the investment valuation by utilizing the bid price in the market and also refers to third party sources to validate valuations, and as such are classified as Level 2 assets.
The Company's certificates of deposit have remaining maturities of less than one year and are considered as Level 1 assets. These investments are carried at cost, which approximates fair value.

During the year ended December 31, 2017, the Company made technology investments in certain non-consolidated third-parties for ownership interests of less than 20%.  These investments do not have readily determinable fair values, and the Company has not identified any observable events that would cause adjustment to date, and therefore these investments are held at cost at a total of $3.2 million as of June 30, 2018. These investments are classified within Long-Term Investments in the consolidated balance sheet. 
Assets or liabilities that have recurring fair value measurements are shown below as of June 30, 2018 and December 31, 2017:
As of June 30, 2018
Fair Value Measurements at Reporting Date Using
Total as of
Quoted Prices in
Active Markets for
Identical Assets
Significant 
Other
Observable
Significant
Unobservable
Inputs
DescriptionJune 30, 2018(Level 1)(Level 2)(Level 3)
Cash & Cash Equivalents$296,699,141 $296,699,141 $— $— 
Short-Term Investments:
Certificate of Deposit
160,017,640 160,017,640 — — 
Corporate Bonds
3,000,721 — 3,000,721 — 
Government Securities
6,691,825 — 6,691,825 — 
Other
1,310,620 1,310,620 — — 
Long-Term Investments:
Corporate Bonds
64,396,193 — 64,396,193 — 
Government Securities
55,897,881 — 55,897,881 — 
Common Stocks
40,000 40,000 — — 
Municipal Bonds
17,771,621 17,771,621 — — 
Total$605,825,642 $475,839,022 $129,986,620 $— 


As of December 31, 2017
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
DescriptionDecember 31, 2017(Level 1)(Level 2)(Level 3)
Cash & Cash Equivalents$569,734,496 $569,734,496 $— $— 
Short-Term Investments:
Certificate of Deposit
130,000,000 130,000,000 — — 
Government Securities
9,011,130 — 9,011,130 — 
Mutual Funds
393,581 — 393,581 — 
Corporate Bonds
12,944,999 — 12,944,999 — 
Other
188,344 188,344 — — 
Long-Term Investments:
Corporate Bonds
3,018,720 — 3,018,720 — 
Common Stocks
15,703,371 15,703,371 — — 
Mutual Funds
34,681,337 34,681,337 — — 
Preferred Stock
1,178,991 1,178,991 — — 
Total$776,854,969 $751,486,539 $25,368,430 $— 
The amortized cost, unrealized gains and losses, and market value of investment securities are shown as of June 30, 2018, and December 31, 2017

As of June 30, 2018:
Unrealized
CostGainsLossesMarket Value
Short-Term Investments:
Certificate of Deposit$160,003,990 $13,675 $(25)$160,017,640 
Government Securities6,693,257 280 (1,712)6,691,825 
Corporate Bonds3,011,806 — (11,085)3,000,721 
Other1,310,620 — — 1,310,620 
Long-Term Investments:
Corporate Bonds64,584,256 5,591 (193,654)64,396,193 
Government Securities55,912,057 22,868 (37,044)55,897,881 
Common Stocks40,000 — — 40,000 
Municipal Bonds
17,842,453 5,782 (76,614)17,771,621 
Total$309,398,439 $48,196 $(320,134)$309,126,501 


As of December 31, 2017: 
Unrealized
CostGainsLossesMarket Value
Short-Term Investments:
Certificate of Deposit$130,000,000 $— $— $130,000,000 
Government Securities9,024,777 — (13,647)9,011,130 
Mutual Funds392,482 1,575 (476)393,581 
Corporate Bonds12,952,229 — (7,230)12,944,999 
Other188,344 — — 188,344 
Long-Term Investments:
Corporate Bonds3,022,994 — (4,274)3,018,720 
Common Stocks10,897,219 5,079,815 (273,663)15,703,371 
Mutual Funds29,306,540 5,440,344 (65,547)34,681,337 
Preferred Stock1,141,458 40,533 (3,000)1,178,991 
Total$196,926,043 $10,562,267 $(367,837)$207,120,473 

Unrealized losses on investments as of June 30, 2018, are as follows: 

Aggregate Unrealized LossesAggregate Fair Value
Less than one year$320,134 $118,370,168 
Greater than one year— — 
Total$320,134 $118,370,168 
Unrealized losses on investments as of December 31, 2017, are as follows: 

Aggregate Unrealized LossesAggregate Fair Value
Less than one year$263,655 $31,223,557 
Greater than one year104,182 285,077 
Total$367,837 $31,508,634 

ASC 320, “Accounting for Certain Investments in Debt and Equity Securities”, as amended, provides guidance on determining when an investment is other than temporarily impaired. No investment losses were considered to be other than temporary during the periods presented. The Company has the intention and current ability to hold its debt investments until the amortized cost basis has been recovered.

Fixed income securities as of June 30, 2018 have contractual maturities as follows:
Due within one year$169,743,770 
Due between one and five years128,436,685 
Due over five years10,411,957 
$308,592,412