Income (expense) and gain (loss) recognized from the settlement of a preexisting relationship between the acquirer and the acquiree.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=7659399&loc=d3e1392-128463

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 57

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph m(1-4)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 04-1

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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_BusinessAcquisitionPreexistingRelationshipGainLossRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Subsequent Events - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended				1 Months Ended
	Feb. 02, 2013	Oct. 20, 2012	Feb. 02, 2013 2012 Equity Replacement Plan [Member]	Jul. 02, 2013 Subsequent Event [Member]	Jul. 02, 2013 Subsequent Event [Member] Mr. Friedman [Member] 2012 Equity Replacement Plan [Member]	Jul. 02, 2013 Subsequent Event [Member] Mr. Friedman [Member] 2012 Equity Replacement Plan [Member] Minimum [Member]	Jul. 02, 2013 Subsequent Event [Member] Mr. Friedman [Member] 2012 Equity Replacement Plan [Member] Maximum [Member]
Subsequent Event [Line Items]
Options granted	8,159,577				1,000,000
Unrecognized non-cash stock compensation charge	$ 0.5		$ 16.4			$ 30.0	$ 35.0
Parent Company's investment in initial public offering		5.0
Write-down of receivables due to acquisition				$ 0.3