Long-term Debt - Additional Information - Delayed Draw Term Loan (Detail) (USD $) In Millions, unless otherwise specified		6 Months Ended
May 30, 2012	May 31, 2014 Delayed Draw Term Loan [Member]	Nov. 30, 2013 Delayed Draw Term Loan [Member]
Debt Instrument [Line Items]
Term loan borrowings under credit facility	$ 50.0	$ 100.0
Interest at greater of LIBOR		1.00%
Interest at LIBOR plus basis points		8.50%
Interest rate addition to base rate		7.50%
Subordinated credit facility description		In general, borrowings under the Subordinated Credit Facility bear interest at a rate equal to the sum of (x) the greater of LIBOR and 1.00% per annum plus (y) 8.50%, or in the case of base rate loans, the base rate as it is defined in the credit agreement governing the Subordinated Credit Facility plus 7.50%.
Term loan facility outstanding amount		$ 79.0	$ 0

Interest At Libor Plus Basis Points

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- Definition

Interest At Libor Plus Basis Points Minimum

+ References

No definition available.

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- Definition

Interest Rate Addition To Base Rate

+ References

No definition available.

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- Details

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- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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- Definition

Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

+ 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 210.5-02.19(b),22(b))

-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 19, 22

-Article 5

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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