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Investments
3 Months Ended
Mar. 31, 2021
Investments [Abstract]  
Investments Investments
The Company follows the provisions of Accounting Standards Codification ("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 with respect to a company’s use of fair-value measurements, including the effect of such measurements on earnings. The cost of securities sold is based on the specific identification method.
The Company determines the fair value of its government securities, asset-backed securities, municipal bonds, 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 are classified as available for sale and are considered as Level 1 assets. These investments are carried at cost, which approximates fair value.

The Company also periodically makes technology investments in certain non-consolidated third-parties. These equity investments are accounted for in accordance with ASC 321, Investments - Equity Securities. Equity investments that do not have readily determinable fair values, and where the Company has not identified any observable events that would cause adjustment of the valuation to date, such equity investments are held at cost. These technology investments totaled approximately $4.0 million as of March 31, 2021 and December 31, 2020. These investments are classified within Long-Term Investments in the consolidated balance sheets. 
Assets or liabilities that have recurring fair value measurements are shown below as of March 31, 2021 and December 31, 2020:
As of March 31, 2021:
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, 2021(Level 1)(Level 2)(Level 3)
Cash & Cash Equivalents
$455,940,751 $455,940,751 $— $— 
Short-Term Investments:
Certificate of Deposit2,519,358 2,519,358 — — 
Corporate Bonds5,065,020 — 5,065,020 — 
Government Securities6,641,463 — 6,641,463 — 
Municipal Bonds10,192,907 — 10,192,907 — 
Other1,525,366 1,525,366 — — 
Long-Term Investments:
Asset Backed Securities26,720,719 — 26,720,719 — 
Certificate of Deposit2,613,503 2,613,503 — — 
Corporate Bonds20,105,773 — 20,105,773 — 
Government Securities12,909,523 — 12,909,523 — 
Municipal Bonds106,540,254 — 106,540,254 — 
Total$650,774,637 $462,598,978 $188,175,659 $— 

As of December 31, 2020:
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, 2020(Level 1)(Level 2)(Level 3)
Cash & Cash Equivalents
$423,371,036 $423,371,036 $— $— 
Short-Term Investments:
Certificate of Deposit1,516,693 1,516,693 — — 
Corporate Bonds7,155,600 — 7,155,600 — 
Government Securities6,678,450 — 6,678,450 — 
Municipal Bonds10,284,765 — 10,284,765 — 
Other1,528,861 1,528,861 — — 
Long-Term Investments:
Asset-backed Securities37,924,537 — 37,924,537 — 
Certificate of Deposit3,645,520 3,645,520 — 
Corporate Bonds9,024,035 — 9,024,035 — 
Municipal Bonds107,407,831 — 107,407,831 — 
Total$608,537,328 $430,062,110 $178,475,218 $— 

The amortized cost, unrealized gains and losses, and market value of investment securities are shown as of March 31, 2021 and December 31, 2020:
As of March 31, 2021:
Unrealized
Cost
Gains
Losses
Market Value
Short-Term Investments:
Certificate of Deposit$2,502,868 $17,097 $(607)$2,519,358 
Corporate Bonds5,052,118 12,902 — 5,065,020 
Government Securities6,634,876 6,587 — 6,641,463 
Municipal Bonds10,119,894 73,013 — 10,192,907 
Other1,525,366 — — 1,525,366 
Long-Term Investments:
Asset Backed Securities27,213,749 69,001 (562,031)26,720,719 
Certificate of Deposit2,502,813 110,690 — 2,613,503 
Corporate Bonds20,001,918 298,615 (194,760)20,105,773 
Government Securities13,107,074 — (197,551)12,909,523 
Municipal Bonds103,593,419 3,579,244 (632,409)106,540,254 
Total$192,254,095 $4,167,149 $(1,587,358)$194,833,886 


As of December 31, 2020:    
Unrealized
CostGainsLossesMarket Value
Short-Term Investments:
Certificate of Deposit$1,502,187 $14,506 $— $1,516,693 
Corporate Bonds7,084,638 70,962 — 7,155,600 
Government Securities6,635,132 43,318 — 6,678,450 
Municipal Bonds10,160,376 124,389 — 10,284,765 
Other1,528,861 — — 1,528,861 
Long-Term Investments:
Asset-backed Securities37,681,113 800,802 (557,378)37,924,537 
Certificate of Deposit3,503,898 141,622 — 3,645,520 
Corporate Bonds8,595,020 429,015 — 9,024,035 
Municipal Bonds100,776,325 6,635,428 (3,922)107,407,831 
Total$177,467,550 $8,260,042 $(561,300)$185,166,292 

Unrealized losses on investments as of March 31, 2021, are as follows:
Aggregate Unrealized LossesAggregate Fair Value of Investments
Loss duration of less than one year$1,176,276 $56,463,167 
Loss duration of greater than one year411,082 1,958,502 
       Total
$1,587,358 $58,421,669 

Unrealized losses on investments as of December 31, 2020, are as follows: 
Aggregate Unrealized Losses
Aggregate Fair Value of Investments
Loss duration of less than one year$561,300 $12,317,187 
Loss duration of greater than one year— — 
       Total
$561,300 $12,317,187 

Effective January 1, 2020, the Company adopted ASU 2016-13, Financial Instruments - Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. The guidance modifies the impairment model for available-for-sale debt securities and provides a simplified accounting model for purchased financial assets with credit deterioration since their origination. The Company utilized the guidance provided by ASC 326 to determine whether any of the available-for-sale debt securities held by the Company were impaired. No investments were considered to be impaired 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 March 31, 2021 have contractual maturities as follows:
Due within one year
$24,418,748 
Due between one and five years
39,844,725 
Due over five years
129,045,047 
$193,308,520