Investments - Debt Securities Available-For-Sale (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Unrealized Losses, Less than 12 Months	$ (186)	$ (9)
Unrealized Losses,12 Months or Longer	0
Fair Value, Less than 12 Months	86,603	26,650
Fair Value, 12 Months or Longer	0
Unrealized Losses	(186)	(9)
Fair Value	86,603	26,650
Corporate Debt Securities [Member]
Unrealized Losses, Less than 12 Months	(79)	(6)
Unrealized Losses,12 Months or Longer	0
Fair Value, Less than 12 Months	19,043	16,655
Fair Value, 12 Months or Longer	0
Unrealized Losses	(79)	(6)
Fair Value	19,043	16,655
Commercial Paper [Member]
Unrealized Losses, Less than 12 Months	(83)	(3)
Fair Value, Less than 12 Months	38,621	9,995
Unrealized Losses	(83)	(3)
Fair Value	38,621	$ 9,995
U.S. government and agency securities [Member]
Unrealized Losses, Less than 12 Months	(24)
Fair Value, Less than 12 Months	28,939
Unrealized Losses	(24)
Fair Value	$ 28,939

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-SubTopic 30
-Section 50
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