v3.21.2

FAIR VALUE MEASUREMENTS - FPA Liability (Details) - FPA liability	6 Months Ended
	Jun. 30, 2021 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fixed commitment	$ 300,000,000
Probability for consummation of business combination	100.00%

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

X

- Definition

This represents aggregate fixed commitment pursuant to forward purchase agreement.

+ References

No definition available.

+ Details

Name:	wpf_ForwardPurchaseAgreementFixedCommitment
Namespace Prefix:	wpf_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Probability for consummation of business combination.

+ References

No definition available.

+ Details

Name:	wpf_ProbabilityForConsummationOfBusinessCombination
Namespace Prefix:	wpf_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=wpf_ForwardPurchaseAgreementLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: