Investments in Marketable Securities - Schedule of Fair Value of Marketable Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Marketable Securities [Line Items]
Marketable securities	$ 8,968	$ 54,602
Level 1 [Member]
Marketable Securities [Line Items]
Marketable securities	4,968	15,257
Level 2 [Member]
Marketable Securities [Line Items]
Marketable securities	4,000	39,345
U.S. Treasury Securities [Member]
Marketable Securities [Line Items]
Marketable securities	4,968	15,257
U.S. Treasury Securities [Member] | Level 1 [Member]
Marketable Securities [Line Items]
Marketable securities	4,968	15,257
U.S. Treasury Securities [Member] | Level 2 [Member]
Marketable Securities [Line Items]
Marketable securities		0
Commercial Paper [Member]
Marketable Securities [Line Items]
Marketable securities		28,980
Commercial Paper [Member] | Level 2 [Member]
Marketable Securities [Line Items]
Marketable securities		28,980
Asset Backed Securities [Member]
Marketable Securities [Line Items]
Marketable securities	4,000	10,365
Asset Backed Securities [Member] | Level 2 [Member]
Marketable Securities [Line Items]
Marketable securities	$ 4,000	$ 10,365