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Investments in Marketable Debt Securities, Available-for-Sale - Available-for-sale securities in a continuous unrealized loss position (Details) $ in Thousands | Dec. 31, 2021 USD ($)
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Fair Value |
Less than 12 months | $ 149,512
12 months or greater | 0
Total | 149,512
Gross Unrealized Losses |
Less than 12 months | (381)
12 months or greater | 0
Total | (381)
Corporate debt security |
Fair Value |
Less than 12 months | 113,806
12 months or greater | 0
Total | 113,806
Gross Unrealized Losses |
Less than 12 months | (303)
12 months or greater | 0
Total | (303)
U.S. treasuries |
Fair Value |
Less than 12 months | 5,604
12 months or greater | 0
Total | 5,604
Gross Unrealized Losses |
Less than 12 months | (12)
12 months or greater | 0
Total | (12)
Asset-backed security and other |
Fair Value |
Less than 12 months | 7,961
12 months or greater | 0
Total | 7,961
Gross Unrealized Losses |
Less than 12 months | (32)
12 months or greater | 0
Total | (32)
Non-U.S. government and supranational bonds |
Fair Value |
Less than 12 months | 20,140
12 months or greater | 0
Total | 20,140
Gross Unrealized Losses |
Less than 12 months | (34)
12 months or greater | 0
Total | (34)
Certificate of deposit |
Fair Value |
Less than 12 months | 2,001
12 months or greater | 0
Total | 2,001
Gross Unrealized Losses |
Less than 12 months | 0
12 months or greater | 0
Total | $ 0

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124269663&loc=SL82922890-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details
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