SUBSEQUENT EVENTS (Details)		3 Months Ended
	Sep. 13, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares	Dec. 15, 2020 $ / shares shares
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common shares, par value (in dollars per share) | $ / shares		$ 0.0001
Number of shares per warrant			1
Aggregate purchase price | $		$ 25,000
Class A Ordinary Shares
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common shares, par value (in dollars per share) | $ / shares		$ 0.0001	$ 0.0001
Class B Ordinary Shares
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Common shares, par value (in dollars per share) | $ / shares		$ 0.0001	$ 0.0001
Subsequent Event | Public Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares per warrant	1
Exercise price of warrant | $ / shares	$ 11.50
Subsequent Event | Merger Agreement | Forge
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Threshold percentage of consideration payable in cash	15.00%
Threshold amount of consideration payable in cash | $	$ 100,000,000
Aggregate value of consideration transferred | $	$ 1,500,000,000
Number of shares issuable	140,000,000
Deemed value per share | $ / shares	$ 10.00
Subsequent Event | Merger Agreement | Public Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Conversion ratio	1
Number of warrants converted to Domesticated Company Common Stock	1
Subsequent Event | Merger Agreement | Private Placement Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Conversion ratio	1
Number of warrants converted to Domesticated Company Common Stock	1
Subsequent Event | Registration Rights Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Threshold number of days to file registration statement after Closing	30 days
Subsequent Event | Subscription Agreement | PIPE Investors
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares issued	6,850,000
Share price | $ / shares	$ 10.00
Aggregate purchase price | $	$ 68,500,000
Subsequent Event | Class A Ordinary Shares | Merger Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares converted to Domesticated Company Common Stock	1
Common shares, par value (in dollars per share) | $ / shares	$ 0.0001
Subsequent Event | Class B Ordinary Shares | Merger Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares converted to Domesticated Company Common Stock	1
Subsequent Event | Forward Purchase Units | Merger Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of warrants converted to Domesticated Company Common Stock	1
Subsequent Event | Forward Purchase Units | Merger Agreement | Public Warrants
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Number of shares in a unit converted to Domesticated Company Common Stock	0.33
Subsequent Event | Forward Purchase Units | Forward Purchase Agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Unit price | $ / shares	$ 10.00
Number of maximum units can be sold to purchasers	5,000,000
Number of domestic company common shares per unit	1
Number of domestic company public warrants per unit	0.33
Number of maximum additional units can be sold to purchasers	9,000,000
Maximum amount of units that can be sold to purchasers | $	$ 14,000,000