XML 29 R19.htm IDEA: XBRL DOCUMENT
v3.23.1

Marketable Securities (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Summary of Amortized Cost and Estimated Fair Value of Marketable Securities by Contractual Maturity | The amortized cost and estimated fair value of marketable securities, by contractual maturity are as follows:
|  | March 31, 2023 |
(in thousands) |  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Fair Value |
Maturing in one year or less |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 5,000 |  |  | $ | — |  |  | $ | (2 | ) |  | $ | 4,998 |
U.S. Treasuries |  |  | 136,982 |  |  |  | — |  |  |  | (178 | ) |  |  | 136,804 |
Maturing after one year through five years |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasuries |  |  | 25,937 |  |  |  | 6 |  |  |  | — |  |  |  | 25,943 |
Total |  | $ | 167,919 |  |  | $ | 6 |  |  | $ | (180 | ) |  | $ | 167,745 |
|  | December 31, 2022 |
(in thousands) |  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Fair Value |
Maturing in one year or less |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 5,001 |  |  | $ | — |  |  | $ | (56 | ) |  | $ | 4,945 |
U.S. Treasuries |  |  | 116,432 |  |  |  | — |  |  |  | (617 | ) |  |  | 115,815 |
Maturing after one year through five years |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasuries |  |  | 51,876 |  |  |  | — |  |  |  | (97 | ) |  |  | 51,779 |
Total |  | $ | 173,309 |  |  | $ | — |  |  | $ | (770 | ) |  | $ | 172,539 |

X
- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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