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Marketable Securities | 12 Months Ended
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Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract] |
Marketable Securities | Marketable Securities The Company has investments in available-for-sale debt securities that are recorded at fair market value. The change in the fair value of available-for-sale debt investments is recorded as accumulated other comprehensive loss in shareholders’ equity, net of income tax effects. As of December 31, 2021, the Company considered any decreases in fair value on its marketable securities to be driven by factors other than credit risk, including market risk. The following tables show the Company’s available-for-sale securities’ adjusted cost, gross unrealized gains, gross unrealized losses and fair value by significant investment category as of December 31, 2021 and 2020, respectively:
|  | 2021
Marketable Securities: |  | Adjusted Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Mutual and money market funds |  | $ | 78,331 |  |  | $ | 813 |  |  | $ | (1,046) |  |  | $ | 78,098 |
Corporate bonds |  | 16,478 |  |  | 94 |  |  | (93) |  |  | 16,479 |
Government securities - U.S. |  | 9,530 |  |  | 39 |  |  | (98) |  |  | 9,471 |
Other fixed-income securities |  | 2,473 |  |  | 2 |  |  | (10) |  |  | 2,465 |
Total |  | $ | 106,812 |  |  | $ | 948 |  |  | $ | (1,247) |  |  | $ | 106,513 |
|  | 2020
Marketable Securities: |  | Adjusted Cost |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value
Mutual and money market funds |  | $ | 103,404 |  |  | $ | 1,288 |  |  | $ | (20) |  |  | $ | 104,672 |
Corporate bonds |  | 21,811 |  |  | 350 |  |  | (6) |  |  | 22,155 |
Government securities - U.S. |  | 18,849 |  |  | 155 |  |  | (5) |  |  | 18,999 |
Other fixed-income securities |  | 3,839 |  |  | 22 |  |  | (7) |  |  | 3,854 |
Total |  | $ | 147,903 |  |  | $ | 1,815 |  |  | $ | (38) |  |  | $ | 149,680 |
The Company determines realized gains or losses on the sale of marketable securities on a specific identification method. The Company reflects these gains and losses as a component of investment and other income in the accompanying consolidated statements of (loss) income. The Company recognized gross realized gains of $174, $474 and $483 for the twelve months ended December 31, 2021, 2020 and 2019, respectively. These realized gains were offset by realized losses of $275, $912 and $151 for the twelve-months ended December 31, 2021, 2020 and 2019, respectively. The following table summarizes the estimated fair value of the Company’s investments in marketable debt securities, accounted for as available-for-sale securities and classified by the contractual maturity date of the securities as of December 31, 2021:
|  | Maturities
Marketable Debt Securities: |  | Less than 1 Year |  | 1-5 Years |  | 5-10 Years |  | Greater than 10 Years |  | Total
Corporate bonds |  | $ | 5,288 |  |  | $ | 10,873 |  |  | $ | 318 |  |  | $ | — |  |  | $ | 16,479 |
Government securities - U.S. |  | 1,531 |  |  | 5,938 |  |  | 807 |  |  | 1,195 |  |  | 9,471 |
Other fixed-income securities |  | — |  |  | 1,860 |  |  | 605 |  |  | — |  |  | 2,465 |
Total |  | $ | 6,819 |  |  | $ | 18,671 |  |  | $ | 1,730 |  |  | $ | 1,195 |  |  | $ | 28,415 |
The Company has classified its investment in available-for-sale marketable securities as current assets in the consolidated balance sheets as the securities need to be available for use, if required, to fund current operations. There are no restrictions on the sale of any securities in the Company’s investment portfolio. Total gross unrealized losses of the Company’s available-for-sale debt securities at December 31, 2021 were immaterial and have been in an unrealized loss position for less than one year. The unrealized losses are driven by factors other than credit risk. The Company does not intend to sell the investments and it is not more likely than not that it will be required to sell the investments before recovery of their amortized cost bases.

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- Definition The entire disclosure of cash, cash equivalents, and debt and equity securities, including any unrealized or realized gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
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