XML 22 R11.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Investments | 3 Months Ended
--- | ---
Mar. 31, 2024
Investments |
Investments | 3. Investments As of March 31, 2024 and December 31, 2023, the Company had investments of $94,485 and $98,031, respectively, classified as available-for-sale securities. As of March 31, 2024, the Company had available-for-sale investments comprised of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | As of March 31, 2024
​ |  | ​ | ​ |  | Gross |  | Gross |  | Estimated
​ | ​ | Adjusted | ​ | Unrealized | ​ | Unrealized | ​ | Fair
​ | ​ | Cost | ​ | Gains | ​ | (Losses) | ​ | Value
Corporate bonds | ​ | $ | 79,633 | ​ | $ | 155 | ​ | $ | (295) | ​ | $ | 79,493
Agency bonds | ​ | ​ | 15,001 | ​ | ​ | 4 | ​ | ​ | (13) | ​ | ​ | 14,992
Total investments | ​ | $ | 94,634 | ​ | $ | 159 | ​ | $ | (308) | ​ | $ | 94,485
​ For the three months ended March 31, 2024 and 2023, the net unrealized losses and gains were $56 and $119, respectively, net of taxes. Available-for-sale debt securities are carried at fair value on the consolidated balance sheets. The Company estimates the lifetime expected credit losses for all available-for sale debt securities in an unrealized loss position. If our assessment indicates that an expected credit loss exists, we determine the portion of the unrealized loss attributable to credit deterioration and record a reserve for the expected credit loss in the allowance for credit losses in technology and academic services in our consolidated income statements. The Company has the ability and intent to hold these investments until recovery or maturity. ​
​ | ​ | ​ | ​
Available-for-sale securities maturing as of December 31: | ​ | ​ | ​
2024 | ​ | $ | 50,632
2025 | ​ | ​ | 26,916
2026 | ​ | ​ | 9,747
2027 | ​ | ​ | 7,190
Total | ​ | $ | 94,485
​

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

X
- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//320/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481800/320-10-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-6B Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6B -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-6B Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) -Publisher SEC Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//946-320/tableOfContent Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//940-320/tableOfContent Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 320 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//942-320/tableOfContent + Details
Name: | us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration