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Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Guarantor Obligations, Contractual Term

No definition available.

Name:	hy_GuarantorObligationsContractualTerm
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Data Type:	xbrli:durationItemType
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Amount of those guarantees that are issued to benefit entities meeting the definition of a related party.

No definition available.

Name:	hy_GuarantorObligationsRelatedPartyDisclosures
Namespace Prefix:	hy_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Loan losses guaranteed

No definition available.

Name:	hy_LoanLossesGuaranteed
Namespace Prefix:	hy_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Net guarantee of outstanding debt

No definition available.

Name:	hy_Netguaranteeofoutstandingdebt
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Data Type:	xbrli:monetaryItemType
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The amount for notes payable (written promise to pay), recorded by related parties due to their parent company.

No definition available.

Name:	hy_NotesPayableRelatedPartyDueToParent
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Percentage of loan losses guaranteed

No definition available.

Name:	hy_PercentageOfLoanLossesGuaranteed
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Percentage of loans guaranteed to joint venture

No definition available.

Name:	hy_PercentageOfLoansGuaranteedToJointVenture
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Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

No definition available.

Name:	us-gaap_ContractualObligation
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Data Type:	xbrli:monetaryItemType
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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.

No definition available.

Name:	us-gaap_GuaranteeObligationsLineItems
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Data Type:	xbrli:stringItemType
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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12201-110248

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Data Type:	na
Balance Type:
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Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_FinancialGuaranteeMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_ReceivableTypeDomain
Namespace Prefix:
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