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The threshold of annual excess cash flow above which amounts are required to be used for prepayment of outstanding debt, subject to certain limits and exceptions, per the terms of the debt agreement.

No definition available.

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Represents the minimum stated percentage floor when determining variable rate options under the terms of a debt agreement.

No definition available.

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Represents the percentage of the original principal amount of the debt instrument on which an aggregate annual amount of required scheduled quarterly repayments is determined.

No definition available.

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Represents a prepayment premium percentage that is required on prepayments that meet certain criteria per the terms of the debt agreement.

No definition available.

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A secondary variable margin percentage, based on the type of variable interest rate loan, added to the reference rate and primary applicable variable rate spreads used to compute the variable rate on the debt instrument.

No definition available.

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Maximum percentage of annual excess cash flow that may be required to be used for prepayment of outstanding debt per terms of the debt agreement.

No definition available.

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Data Type:	num:percentItemType
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Percentage of net cash proceeds of certain issuances of debt required to be used for prepayment of debt per the terms of the debt agreement.

No definition available.

Name:	hw_PercentageOfNetProceedsOfCertainIssuancesOfDebtRequiredToBeUsedForPrepaymentOfDebt
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Data Type:	num:percentItemType
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Period Type:	duration

Percentage of net cash proceeds of non-ordinary course asset sales required to be used for prepayment of debt obligations per the terms of the debt agreement.

No definition available.

Name:	hw_PercentageOfNetProceedsOfNonOrdinaryCourseAssetSalesRequiredToBeUsedForPrepaymentOfDebt
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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

No definition available.

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Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 835
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-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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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.

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The effective interest rate at the end of the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Data Type:	num:percentItemType
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Period Type:	instant

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Period Type:	instant

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6513228

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Namespace Prefix:
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Data Type:	na
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Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
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