Balance Sheet Accounts and Supplemental Disclosures - Schedule of Accounts Receivable (Detail) (USD $) In Millions, unless otherwise specified	Nov. 30, 2013	Nov. 30, 2012
Receivables [Abstract]
Billed	$ 96.3	$ 49.4
Unbilled	138.0	69.0
Reserve on overhead rate disallowance	(20.5)	(7.0)
Total receivables under long-term contracts	213.8	111.4
Other receivables	0.3	0.1
Accounts receivable	$ 214.1	$ 111.5

Reserve on Overhead Rate Disallowance

No definition available.

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- Definition

Amount billed to customers under long-term contracts or programs but not paid. Excludes amounts due that have been withheld because of retainage provisions in a contract.

+ References

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-Publisher FASB

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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- Definition

Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy.

+ References

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-Publisher FASB

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- Definition

Amount to be collected within one year of the balance sheet date (or one operating cycle, if longer) from customers in accordance with the contractual provisions of long-term contracts or programs including amounts billed and unbilled as of the balance sheet date.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-Subparagraph (SX 210.5-02.3(c))

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- Definition

Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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