SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail) - USD ($) |
1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Apr. 08, 2019 |
Apr. 30, 2019 |
Sep. 30, 2020 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Sep. 30, 2019 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Initial Public Offering | |||||||||||||
| Federal depository insurance coverage | $ 250,000 | ||||||||||||
| Shares subject to possible redemption | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | ||
| Temporary Equity, Redemption Price Per Share | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | $ 10.00 | ||
| Total loss allocable to all shares | $ (18,900,000) | $ (27,200,000) | |||||||||||
| Remeasurement of ordinary shares subject to possible redemption | $ 31,300,000 | ||||||||||||
| Basic and diluted weighted average shares outstanding of Founder Shares | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | 7,187,500 | ||
| Basic and diluted weighted average shares outstanding of Public Shares | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | 28,750,000 | ||
| Unrecognized tax benefits | $ 0 | $ 0 | |||||||||||
| Accrual for interest and penalties | $ 0 | $ 0 | |||||||||||
| IPO | |||||||||||||
| Initial Public Offering | |||||||||||||
| Shares subject to possible redemption | 28,750,000 | 28,750,000 | |||||||||||
| Number of shares issued | 28,750,000 | 28,750,000 | |||||||||||
| Public Shares | |||||||||||||
| Initial Public Offering | |||||||||||||
| Income(loss) allocation ratio | 80.00% | 80.00% | |||||||||||
| Founder Shares | |||||||||||||
| Initial Public Offering | |||||||||||||
| Income(loss) allocation ratio | 20.00% | 20.00% | |||||||||||
| Ordinary Shares | IPO | |||||||||||||
| Initial Public Offering | |||||||||||||
| Number of shares issued | 28,750,000 | ||||||||||||