CONDENSED STATEMENTS OF OPERATIONS (Parenthetical)	Mar. 31, 2020 shares
Class B Common Stock [Member]
Earnings Per Share, Basic and Diluted [Abstract]
Common stock, shares subject to forfeiture (in shares)	937,500

Number of common stock shares subject to forfeiture in the event of the over-allotment option was not exercised by the underwriters.

No definition available.

Name:	cfv_CommonStockSharesSubjectToForfeiture
Namespace Prefix:	cfv_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant