Name:	hds_DebtInstrumentCollateralPledgedPercentageOfSpecifiedSubsidiaries
Namespace Prefix:	hds_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage attainment of certain secured leverage ratio targets which triggers mandatory prepayment of the debt instrument.

No definition available.

Name:	hds_DebtPrepaymentFromExcessCashFlowPercentage
Namespace Prefix:	hds_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Debt Prepayment From Net Cash Proceeds Of Debt Offering, Asset Sale Or Insurance Recovery, Percentage

No definition available.

Name:	hds_DebtPrepaymentFromNetCashProceedsOfDebtOfferingAssetSaleOrInsuranceRecoveryPercentage
Namespace Prefix:	hds_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the prepayment offered based on the excess cash flow provision.

No definition available.

Name:	hds_LineOfCreditExcessCashFlowProvisionPrepaymentOffered
Namespace Prefix:	hds_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The aggregate annual amount of debt instruments to be amortized as a percentage of the original principal amount.

No definition available.

Name:	hds_RepaymentOfDebtAggregateAnnualAmountAsPercentageOfOriginalPrincipalAmount
Namespace Prefix:	hds_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

No definition available.

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.