Sale of BOXR Assets - Additional Information (Detail) - BOXR Platform [Member] - Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] - SOTIO [Member] - USD ($)	Nov. 30, 2020	Aug. 28, 2020
Disposal Group Not Discontinued Operation Disposal Disclosures [Line Items]
Disposal group, not discontinued operation, upfront payment		$ 8,100,000
Amounts held in escrow were released and received	$ 1,730,000
Other Income [Member]
Disposal Group Not Discontinued Operation Disposal Disclosures [Line Items]
Disposal group, not discontinued operation, gain on disposal of assets		7,400,000
Maximum [Member]
Disposal Group Not Discontinued Operation Disposal Disclosures [Line Items]
Disposal group, not discontinued operation, cash consideration		11,500,000
Disposal group, not discontinued operation, potential milestone payments upon achievement of specified claims issuance		$ 3,400,000