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Fair Value Measurement - Summary of Contractual Maturities of Available for Sale Securities (Detail) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule Of Available For Sale Securities [Line Items] |  |
Available for sale securities, contractual maturities less than 1 year | $ 39,851 | $ 39,211
Available for sale securities, contractual maturities between 1 to 5 years | 67,006 | 65,144
Available for sale securities, contractual maturities between 5 to 10 years | 143,069 | 180,213
Available for sale securities, contractual maturities after 10 years | 16,706 | 27,445
Available for sale securities, contractual maturities, Total | 266,632 | 312,013
Corporate Bonds [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available for sale securities, contractual maturities less than 1 year | 7,548 | 24,601
Available for sale securities, contractual maturities between 1 to 5 years | 35,743 | 35,570
Available for sale securities, contractual maturities between 5 to 10 years | 75,120 | 99,180
Available for sale securities, contractual maturities after 10 years | 121 | 150
Available for sale securities, contractual maturities, Total | 118,532 | 159,501
U.S. Treasuries [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available for sale securities, contractual maturities less than 1 year |  | 953
Available for sale securities, contractual maturities between 1 to 5 years | 3,664 | 4,295
Available for sale securities, contractual maturities between 5 to 10 years | 55,814 | 62,024
Available for sale securities, contractual maturities, Total | 59,478 | 67,272
U.S. Government Agency Securities [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available for sale securities, contractual maturities less than 1 year | 2,425 |
Available for sale securities, contractual maturities between 1 to 5 years | 25,530 | 25,171
Available for sale securities, contractual maturities between 5 to 10 years | 10,017 | 16,809
Available for sale securities, contractual maturities, Total | 37,972 | 41,980
Money Market Funds [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available for sale securities, contractual maturities less than 1 year | 29,878 | 13,657
Available for sale securities, contractual maturities, Total | 29,878 | 13,657
Emerging Markets [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available for sale securities, contractual maturities between 1 to 5 years | 2,018 |
Available for sale securities, contractual maturities, Total | 2,018 |
Asset Backed Securities [Member] |  |
Schedule Of Available For Sale Securities [Line Items] |  |
Available for sale securities, contractual maturities between 1 to 5 years | 51 | 108
Available for sale securities, contractual maturities between 5 to 10 years | 2,118 | 2,200
Available for sale securities, contractual maturities after 10 years | 16,585 | 27,295
Available for sale securities, contractual maturities, Total | $ 18,754 | $ 29,603

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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27198-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126980459&loc=SL120269850-112803 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126980459&loc=SL120269850-112803 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing after tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126980459&loc=SL120269850-112803 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27198-111563 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126980459&loc=SL120269850-112803 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27198-111563 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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