Name:	hdsup_DebtInstrumentCollateralPledgedPercentageOfSpecifiedSubsidiaries
Namespace Prefix:	hdsup_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage to face value at which debt with favorable terms was issued.

No definition available.

Name:	hdsup_DebtInstrumentIssuancePremium
Namespace Prefix:	hdsup_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

No definition available.

Name:	hdsup_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	hdsup_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer with proceeds from certain equity offerings.

No definition available.

Name:	hdsup_DebtInstrumentRedemptionPricePercentageWithProceedsOfCertainEquityOfferings
Namespace Prefix:	hdsup_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage limit on the amount that may be redeemed.

No definition available.

Name:	hdsup_DebtRedemptionPercentageOfPrincipalAmountPayment
Namespace Prefix:	hdsup_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the percentage threshold of outstanding debt which must remain outstanding after each redemption on the amount that may be redeemed.

No definition available.

Name:	hdsup_RequiredPercentageOfAggregatePrincipalAmountOfDebtThatRemainsOutstandingImmediatelyAfterRedemptionMinimum
Namespace Prefix:	hdsup_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: 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=6584090&loc=d3e28878-108400

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

Increase of additional borrowings on existing and new debt instruments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4

Name:	us-gaap_DebtInstrumentIncreaseAdditionalBorrowings
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Interest rate stated in the contractual debt agreement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682