|9 Months Ended|
Sep. 30, 2021
|Investments, Debt and Equity Securities [Abstract]|
3. Marketable Securities
Marketable securities at September 30, 2021 consisted of the following (in thousands):
Marketable securities at December 31, 2020 consisted of the following (in thousands):
Corporate debt includes obligations issued by investment-grade corporations, and may include issues that have been guaranteed by governments and government agencies. Investments classified as short-term have maturities of less than one year, and investments classified as long-term are those that have maturities of greater than one year and management does not intend to liquidate within the next twelve months. All of the Company’s marketable securities have an effective maturity of less than two years.
At September 30, 2021, the Company held 23 debt securities that individually and in total were in an immaterial unrealized loss position for less than one year. The aggregate fair value of debt securities in an unrealized loss position at September 30, 2021 was approximately $38.3 million. The Company evaluated its securities for other than temporary impairment and considered the decline in market value for the securities to be primarily attributable to current economic and market conditions. It was not more likely than not that the Company would have been required to sell the securities prior to the recovery of the amortized cost basis. Based on this analysis, these marketable securities were not considered to be other-than-temporarily impaired as of September 30, 2021.
The entire disclosure for investments in certain debt and equity securities.
Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef