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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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