Note 8 - Goodwill and Other Intangible Assets (Detail) - Changes In The Carrying Value Of Goodwill By Segment (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Nov. 30, 2011
Power [Member]
Nov. 30, 2011
Plant Services [Member]
Nov. 30, 2011
E&I [Member]
Nov. 30, 2011
E&C [Member]
Nov. 30, 2011
F&M [Member]
Nov. 30, 2011
Total [Member]
Balance at August 31, 2011 $ 139,177 $ 42,027 $ 207,862 $ 139,099 $ 17,625 $ 545,790
Acquisitions and related adjustments 0 0 30 0 0 30
Currency translation adjustment 0 0 (638) (589) (738) (1,965)
Balance at November 30, 2011 $ 139,177 $ 42,027 $ 207,254 $ 138,510 $ 16,887 $ 543,855