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Fair Value Measurement - Summary of Contractual Maturities of Available for Sale Securities (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Available for sale securities, contractual maturities less than 1 year	$ 39,232	$ 39,211
Available for sale securities, contractual maturities between 1 to 5 years	85,927	65,144
Available for sale securities, contractual maturities between 5 to 10 years	112,396	180,213
Available for sale securities, contractual maturities after 10 years	16,453	27,445
Available for sale securities, contractual maturities, Total	254,008	312,013
Corporate Bonds [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale securities, contractual maturities less than 1 year	4,829	24,601
Available for sale securities, contractual maturities between 1 to 5 years	51,107	35,570
Available for sale securities, contractual maturities between 5 to 10 years	53,973	99,180
Available for sale securities, contractual maturities after 10 years	112	150
Available for sale securities, contractual maturities, Total	110,021	159,501
U.S. Treasuries [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale securities, contractual maturities less than 1 year	145	953
Available for sale securities, contractual maturities between 1 to 5 years	3,578	4,295
Available for sale securities, contractual maturities between 5 to 10 years	52,949	62,024
Available for sale securities, contractual maturities, Total	56,672	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	3,919
Available for sale securities, contractual maturities between 1 to 5 years	29,240	25,171
Available for sale securities, contractual maturities between 5 to 10 years	3,416	16,809
Available for sale securities, contractual maturities, Total	36,575	41,980
Money Market Funds [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale securities, contractual maturities less than 1 year	30,339	13,657
Available for sale securities, contractual maturities, Total	30,339	13,657
Emerging Markets [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale securities, contractual maturities between 1 to 5 years	1,974
Available for sale securities, contractual maturities, Total	1,974
Asset Backed Securities [Member]
Schedule Of Available For Sale Securities [Line Items]
Available for sale securities, contractual maturities between 1 to 5 years	28	108
Available for sale securities, contractual maturities between 5 to 10 years	2,058	2,200
Available for sale securities, contractual maturities after 10 years	16,341	27,295
Available for sale securities, contractual maturities, Total	$ 18,427	$ 29,603

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