Schedule of Changes in Estimated Fair Value of Warrant Liability (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Jun. 30, 2022 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
| Fair value measurements Significant unobservable inputs [Line Items] | |||
| Beginning balance | $ 22,355 | $ 40,500 | |
| Change in estimated fair value of liability classified warrants | (20,752) | (18,122) | $ 22,870 |
| Ending balance | 1,603 | 22,355 | 40,500 |
| Fair Value, Measurements, Recurring [Member] | Level 3 | |||
| Fair value measurements Significant unobservable inputs [Line Items] | |||
| Beginning balance | 22,355 | 40,483 | |
| Reclassification of warrant liability to equity upon exercise of warrants | 0 | (6) | |
| Change in estimated fair value of liability classified warrants | (20,752) | (18,122) | |
| Ending balance | $ 1,603 | $ 22,355 | $ 40,483 |