Fair Value of Financial Instruments - Summary of Contractual Maturities of Short and Long Term Investments (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value Disclosures [Abstract]
Amortized Cost Basis, Due within one year	$ 944,398	$ 821,101
Amortized Cost Basis, Due after 1 year through 2 years	166,076	175,537
Amortized Cost	1,110,474	996,638
Aggregate Fair Value, Due within one year	940,379	820,962
Aggregate Fair Value, Due after 1 year through 2 years	162,660	174,895
Aggregate Fair Value, Total	$ 1,103,039	$ 995,857

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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).

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