Commitments and Contingencies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Jun. 30, 2003	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Commitments And Contingencies [Line Items]
Original land lease expiration date	51 years
Lease paid in advance	$ 28.0
Prepaid land lease adjustments term	10 years
Lease expiration date		Sep. 01, 2019
Rental expense		17.8	14.7	14.2
Sublease income		5.6
Long-term income tax liabilities for uncertainty in income taxes		55.7
Letters Of Credit Two
Commitments And Contingencies [Line Items]
Revolving credit facility amount outstanding		1.6
Revolving Line Of Credit
Commitments And Contingencies [Line Items]
Revolving credit facility, maximum capacity		$ 10.0