XML 45 R34.htm IDEA: XBRL DOCUMENT v3.20.2
FAIR VALUE MEASUREMENTS (Details) - USD ($)
Jun. 30, 2020
Dec. 31, 2019
Recurring [Member] | Level 1 [Member]    
Fair Value Measurements [Abstract]    
Marketable securities held in Trust Account $ 254,070,734 $ 251,924,993