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Variable Interest Entities (Details)	12 Months Ended
	Jun. 30, 2022
Exclusive Technical Consultation and Service Agreements
Variable Interest Entity [Line Items]
Fee as a percentage of consolidated net income	100.00%
Term of agreement	20 years
Voting Right Proxy and Financial Support Agreements
Variable Interest Entity [Line Items]
Fee as a percentage of consolidated net income	100.00%
Term of agreement	20 years

X

- Definition

Represents the fee as a percentage of consolidated net income.

+ References

No definition available.

+ Details

Name:	hyw_FeeAsPercentageOfConsolidatedNetIncome
Namespace Prefix:	hyw_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the term of agreement.

+ References

No definition available.

+ Details

Name:	hyw_TermOfAgreement
Namespace Prefix:	hyw_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=hyw_ExclusiveTechnicalConsultationAndServiceAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=hyw_VotingRightProxyAndFinancialSupportAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: