Debt and Credit Lines Debt and Credit Lines - Amounts due to banks (Details) (USD $) In Millions, unless otherwise specified	Feb. 28, 2013	Nov. 30, 2012
Debt Instrument [Line Items]
Loans Payable to Bank Current	$ 10.5	$ 9.6
Term Loan B
Debt Instrument [Line Items]
Loans Payable to Bank Current	2.0	2.0
Foreign subsidiaries borrowings
Debt Instrument [Line Items]
Loans Payable to Bank Current	$ 8.5	$ 7.6

Carrying value as of the balance sheet date of current portion of long-term loans payable to bank due within one year or the operating cycle if longer.

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 210.5-02.20)

-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, 20

-Article 5

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