Long-term Debt, Net (Debt Covenants - Text) (Details)	Nov. 30, 2017
Credit Agreement [Member] \| Secured debt [Member]
Debt instrument [Line Items]
Debt covenants compliance, quarterly total net leverage ratio, initial maximum ratio level	4.50

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration