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COMMITMENTS, Registration Rights and Warrant Amendments (Details) - CIK 0001846136 Riverview Acquisition Corp - item	Jun. 30, 2022	Dec. 31, 2021
Registration, Warrant Amendments and Shareholder Rights Agreement [Abstract]
Number of demands entitled to holders	3	3
Minimum percentage of outstanding warrant holders required to approve amendment	65.00%	65.00%

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- Definition

Minimum percentage for outstanding share holders required to amend the term of public warrants.

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No definition available.

+ Details

Name:	wch_MinimumPercentageOfOutstandingWarrantHoldersRequiredToApproveAmendment
Namespace Prefix:	wch_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

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- Definition

Represents the number of demands eligible security holder can make.

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No definition available.

+ Details

Name:	wch_NumberOfDemandsEligibleSecurityHolderCanMake
Namespace Prefix:	wch_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

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- References

No definition available.

+ Details

Name:	wch_RegistrationAndShareholderRightsAgreementAbstract
Namespace Prefix:	wch_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Details

Name:	dei_LegalEntityAxis=wch_Cik0001846136RiverviewAcquisitionCorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: