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Fair Value Measurements (Details) - Schedule of assets measured at fair value on recurring basis	Jun. 30, 2021 USD ($)
Level 1 [Member]
Assets:
Investments held in Trust Account – U.S. Fixed Income Securities	$ 253,019,504

X

- Definition

Investments held in trust account.

+ References

No definition available.

+ Details

Name:	rclf_InvestmentsHeldInTrustAccountUSFixedIncomeSecurities
Namespace Prefix:	rclf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: