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Condensed Statements of Changes in Stockholders’ Equity (Deficit) (Unaudited) (Parentheticals)	3 Months Ended
	Mar. 31, 2021 $ / shares
Statement of Stockholders' Equity [Abstract]
Forfeiture of common stock to sponsor at par value	$ 0.0001

X

- Definition

Forfeiture of common stock to sponsor at par value.

+ References

No definition available.

+ Details

Name:	cfvi_ForfeitureOfCommonStockToSponsorAtParValue
Namespace Prefix:	cfvi_
Data Type:	dtr:perShareItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration