STOCKHOLDERS' EQUITY - Warrants (Details)	3 Months Ended	6 Months Ended
	Jun. 30, 2020 item	Sep. 30, 2020 item $ / shares
Class of Warrant or Right [Line Items]
Exercise price of warrant		$ 11.50
Redeemable warrants
Class of Warrant or Right [Line Items]
Public Warrants exercisable term after the completion of a business combination		30 days
Public Warrants exercisable term from the closing of the initial public offering		12 months
Public Warrants expiration term		5 years
Threshold period for filling registration statement after business combination		20 days
Fair market value per share		$ 0.361
Number of trading days on which fair market value of shares is reported | item		10
Threshold issue price per share		$ 9.20
Percentage of gross proceeds on total equity proceeds		60.00%
Threshold trading days determining volume weighted average price		20 days
Adjustment of exercise price of warrants based on market value and newly issued price (as a percent)		115.00%
Adjustment of redemption price of stock based on market value and newly issued price 1 (as a percent)		100
Adjustment of redemption price of stock based on market value and newly issued price 2 (as a percent)		180
Threshold period for not to transfer, assign or sell any of their shares or warrants after the completion of the initial business combination		30 days
Redeemable warrants | Redemption of Warrants When the Price per Share of Class A Common Stock Equals or Exceeds $18.00
Class of Warrant or Right [Line Items]
Stock price trigger for redemption of public warrants (in dollars per share)		$ 18.00
Redemption price per public warrant (in dollars per share)		$ 0.01
Minimum threshold written notice period for redemption of public warrants		30 days
Threshold trading days for redemption of public warrants | item	20
Threshold consecutive trading days for redemption of public warrants | item		30
Redemption period		30 days
Threshold business days before sending notice of redemption to warrant holders		3 days
Redeemable warrants | Redemption of Warrants When the Price per Share of Class A Common Stock Equals or Exceeds $10.00
Class of Warrant or Right [Line Items]
Stock price trigger for redemption of public warrants (in dollars per share)		$ 10.00
Redemption price per public warrant (in dollars per share)		$ 0.10
Minimum threshold written notice period for redemption of public warrants		30 days