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The maximum outstanding balance of senior notes at a specified time which, if exceeded and if no binding commitment to refinance exists, will trigger an earlier maturity date per the terms of the term loan 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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Represents the purchase price of the debt instrument as a percentage of the principal amount, if there is a change in control.

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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Represents transaction costs.

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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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.

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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.

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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=34725769&loc=d3e28878-108400

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Period Type:	instant

Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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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_DebtInstrumentLineItems
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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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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
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-Section S99
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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.

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

Reference 1: 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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Data Type:	xbrli:monetaryItemType
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Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
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Name:	us-gaap_VariableRateAxis=hw_DebtInstrumentVariableRateBaseFederalFundsRateMember
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Name:	us-gaap_LongtermDebtTypeAxis=hw_IncrementalTermLoansAndDebtMember
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Name:	us-gaap_LongtermDebtTypeAxis=hw_SeniorNotes725PercentDueJanuary2019Member
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