Business Combination - Additional Information (Details) $ in Thousands |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | |||
---|---|---|---|---|---|---|---|
Jul. 27, 2021 |
Sep. 15, 2020
shares
|
Sep. 15, 2020
shares
|
Mar. 31, 2021
USD ($)
|
Jun. 30, 2021
USD ($)
|
Sep. 30, 2021
USD ($)
ValueRight
|
Dec. 31, 2020
USD ($)
|
|
Business Acquisition [Line Items] | |||||||
Impairment charges | $ | $ 500 | $ 700 | $ 2,300 | ||||
Reverse stock split | 1-for-7 | 1-for-7 | |||||
Goodwill | $ | $ 19,462 | $ 20,089 | |||||
Expiration period termination notice | 60 days | ||||||
resTORbio | |||||||
Business Acquisition [Line Items] | |||||||
Contractual Contingent Value Right | ValueRight | 1 | ||||||
Reverse stock split exchange ratio | 0.1240 | ||||||
Percentage of outstanding capital stock | 75.00% | 75.00% | |||||
Number of shares of surviving stock options | shares | 81,370 | ||||||
Unvested restricted stock units outstanding | shares | 91,309 | 91,309 | |||||
Number of common stock shares sold | shares | 54,553 | ||||||
Goodwill | $ | $ 19,462 | ||||||
resTORbio | Common Stock | |||||||
Business Acquisition [Line Items] | |||||||
Percentage of outstanding capital stock | 25.00% | 25.00% |