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

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	hdsup_RequiredPercentageOfAggregatePrincipalAmountOfDebtThatRemainsOutstandingImmediatelyAfterRedemptionMinimum
Namespace Prefix:	hdsup_
Data Type:	num:percentItemType
Balance Type:	na
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- Definition

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.

+ References

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Interest rate stated in the contractual debt agreement.

+ References

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

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

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Data Type:	xbrli:stringItemType
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Period Type:	duration

DEBT (Details 9) (Second Priority Notes due 2020, USD $) In Millions, unless otherwise specified	Feb. 03, 2013	Apr. 12, 2012
Debt disclosures
Note issued, interest rate	11.00%	11.00%
Threshold percentage for debt that must remain after each redemption	50.00%
Prior to April 15, 2016
Debt disclosures
Optional prepayment price percentage	100.00%
2016
Debt disclosures
Optional prepayment price percentage	105.50%
2017
Debt disclosures
Optional prepayment price percentage	102.75%
2018 and thereafter
Debt disclosures
Optional prepayment price percentage	100.00%
Prior to April 15, 2015
Debt disclosures
Percentage limit on amount that can be redeemed	35.00%
Prepayment percentage price as a percent of the principal, with proceeds from certain equity offerings	111.00%
Refinancing Transactions and Additional Notes
Debt disclosures
Note issued, amount		675
Note issued, interest rate		11.00%