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Shareholders' Equity (Deficit) (Preferred Stock) (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended			0 Months Ended	48 Months Ended
	Jul. 17, 2012	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012	Jul. 24, 2012 Series A 8% Percent Convertible Preferred Stock [Member]	Oct. 14, 2014 Series A 8% Percent Convertible Preferred Stock [Member]	Oct. 14, 2010 Series A 8% Percent Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, shares issued (shares)							89,291,773
Preferred stock dividend, percentage	8.00%	8.00%	8.00%	8.00%		8.00%
Proceeds from issuance of convertible preferred stock						$ 191.9
Stock issuance costs						$ 2.1
Dividends payable (dollars per share)					$ 2.17
Preferred Stock converted into common stock (shares)					30,894,953

X

- Definition

Preferred Stock Converted To Common Stock

+ References

No definition available.

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X

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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X

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

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- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

+ References

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 210.5-02.28)

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



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

-Article 5

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- Definition

The cash inflow from issuance of preferred stocks identified as being convertible into another form of financial instrument, typically the entity's common stock.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

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-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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