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Short-term Investments (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract] |  |
Short term investment impairment | $ 0 |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Amortized cost | 202,965,000 | $ 200,713,000
Gross unrecognized holding gains | 66,000 | 27,000
Gross unrecognized holdings losses | 0 | (5,000)
Aggregate fair value | 203,031,000 | 200,735,000
Cash equivalents | Saving deposits |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Amortized cost | 22,510,000 | 31,288,000
Gross unrecognized holding gains | 0 | 0
Gross unrecognized holdings losses | 0 | 0
Aggregate fair value | 22,510,000 | 31,288,000
Cash equivalents | US Treasury securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Amortized cost |  | 85,201,000
Gross unrecognized holding gains |  | 17,000
Gross unrecognized holdings losses |  | 0
Aggregate fair value |  | 85,218,000
Short-term investments | US Treasury securities |  |
Schedule of Held-to-Maturity Securities [Line Items] |  |
Amortized cost | 180,455,000 | 84,224,000
Gross unrecognized holding gains | 66,000 | 10,000
Gross unrecognized holdings losses | 0 | (5,000)
Aggregate fair value | $ 180,521,000 | $ 84,229,000

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- Definition Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124260329&loc=d3e26610-111562 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 + Details
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