FAIR VALUE MEASUREMENTS (Details) - USD ($)	Dec. 31, 2020	Sep. 30, 2020	Aug. 25, 2020
Liabilities:
Derivative warrant liabilities	$ 35,746,280	$ 35,253,220	$ 17,628,000
Level 1
Assets:
Investments held in Trust Account	544,002,795
Level 1 | Public Warrants
Liabilities:
Derivative warrant liabilities	26,292,580
Level 2
Assets:
Investments held in Trust Account	0
Level 3
Assets:
Investments held in Trust Account	0
Level 3 | Private Placement Warrants
Liabilities:
Derivative warrant liabilities	$ 9,453,700