Long-term Debt - Senior Secured Notes (Details) (USD $) In Millions, unless otherwise specified	Nov. 30, 2014	Nov. 30, 2013
Debt Instrument [Line Items]
Senior secured notes, bearing interest at 7.125% per annum, interest payments due in March and September, maturing in March 2021	$ 460.0us-gaap_SecuredLongTermDebt	$ 460.0us-gaap_SecuredLongTermDebt
Senior Secured Notes Due 2021 [Member]
Debt Instrument [Line Items]
Senior secured notes, bearing interest at 7.125% per annum, interest payments due in March and September, maturing in March 2021	$ 460.0	$ 460.0

Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

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)

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

Name:	us-gaap_SecuredLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant