DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Public and Private Placement Warrants Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	Feb. 07, 2020	Jun. 12, 2018	Dec. 31, 2020
IPO
Class of Warrant or Right [Line Items]
Stock issued (in shares)		69,000,000
Stock issued price (USD per share)		$ 10.00
IPO | Warrant
Class of Warrant or Right [Line Items]
Stock issued price (USD per share)		$ 11.50
IPO | Common Class A
Class of Warrant or Right [Line Items]
Number of common stock shares per unit (in shares)		11.50
Over-Allotment Option
Class of Warrant or Right [Line Items]
Stock issued (in shares)		9,000,000
Warrants outstanding (in shares)			9,387,093
Over-Allotment Option | Warrant
Class of Warrant or Right [Line Items]
Stock issued (in shares)		10,533,333
Stock issued price (USD per share)		$ 11.50
Number of common stock shares per unit (in shares)		11.50
Private Placement
Class of Warrant or Right [Line Items]
Stock issued (in shares)	123,900,000
Stock issued price (USD per share)		$ 1.50
Number of common stock shares per unit (in shares)		11.50
Consideration received on sale of stock, net of issuance costs	$ 1,239.0	$ 15.8
Warrants outstanding (in shares)			10,533,333