XML 66 R25.htm IDEA: XBRL DOCUMENT
v3.20.1

Marketable Securities (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2020
Investments Debt And Equity Securities [Abstract] |
Fair Value of Available for Sale Marketable Securities | At March 31, 2020 and December 31, 2019, the fair value of marketable securities, which were all classified as available for sale, included the following (in thousands):
|  | March 31, 2020 |
|  | Adjusted Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
Level 2: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 34,686 |  |  | $ | — |  |  | $ | (101 | ) |  | $ | 34,585 |
Total |  | $ | 34,686 |  |  | $ | — |  |  | $ | (101 | ) |  | $ | 34,585 |
|  | December 31, 2019 |
|  | Adjusted Cost |  |  | Unrealized Gains |  |  | Unrealized Losses |  |  | Fair Value |
Level 2: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate debt securities |  | $ | 37,325 |  |  | $ | 7 |  |  | $ | (5 | ) |  | $ | 37,327 |
Government-sponsored enterprise debt securities |  |  | 4,001 |  |  |  | — |  |  |  | — |  |  |  | 4,001 |
Total |  | $ | 41,326 |  |  | $ | 7 |  |  | $ | (5 | ) |  | $ | 41,328 |

X
- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration