Note 16 - Accounting for Claims, Unapproved Change Orders and Incentives on Long-Term Construction Contracts (Detail) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Nov. 30, 2011
Nov. 30, 2010
Nov. 30, 2011
Incentive Fee Arrangements [Member]
Aug. 31, 2011
Incentive Fee Arrangements [Member]
Contracts Receivable, Claims and Uncertain Amounts $ 8.7 $ 41.8    
Unbilled Change Orders, Amount Expected to be Collected within One Year 0.7      
Management Fees, Incentive Revenue     115.9 109.0
Deferred Revenue, Revenue Recognized $ 116.6 $ 40.4 $ 79.1 $ 64.8