Annual report pursuant to Section 13 and 15(d)

Summary of Financial Information by Reportable Segment and Product Line (Detail)

v2.4.0.6
Summary of Financial Information by Reportable Segment and Product Line (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Aug. 31, 2012
May 31, 2012
Feb. 29, 2012
Nov. 30, 2011
Aug. 31, 2011
May 31, 2011
Feb. 28, 2011
Nov. 30, 2010
Aug. 31, 2012
Aug. 31, 2011
Aug. 31, 2010
Segment Reporting Information [Line Items]                      
Net sales $ 405,304 $ 429,215 $ 378,024 $ 392,799 $ 403,436 $ 392,777 $ 330,698 $ 318,412 $ 1,605,342 $ 1,445,323 $ 1,160,508
Operating profit (Loss)                 169,942 193,570 121,772
Depreciation and amortization                 54,263 52,996 51,875
Capital Expenditure                 22,740 23,096 19,966
Assets 2,007,119       2,063,217       2,007,119 2,063,217  
Industrial
                      
Segment Reporting Information [Line Items]                      
Net sales                 419,295 393,013 299,983
Operating profit (Loss)                 114,777 98,415 66,344
Depreciation and amortization                 8,358 8,655 6,571
Capital Expenditure                 5,333 3,590 779
Assets 268,735       263,680       268,735 263,680  
Energy
                      
Segment Reporting Information [Line Items]                      
Net sales                 349,163 293,060 235,723
Operating profit (Loss)                 62,205 49,345 30,702
Depreciation and amortization                 18,115 18,152 17,276
Capital Expenditure                 8,962 8,978 7,212
Assets 540,409       517,428       540,409 517,428  
Electrical
                      
Segment Reporting Information [Line Items]                      
Net sales                 328,821 286,013 233,702
Operating profit (Loss)                 (34,572) 20,683 19,853
Depreciation and amortization                 10,667 9,694 10,470
Capital Expenditure                 3,077 1,953 5,662
Assets 437,914       547,556       437,914 547,556  
Engineered Solutions
                      
Segment Reporting Information [Line Items]                      
Net sales                 508,063 473,237 391,100
Operating profit (Loss)                 60,851 63,612 31,681
Depreciation and amortization                 15,093 13,916 14,898
Capital Expenditure                 3,463 5,966 4,517
Assets 667,550       632,242       667,550 632,242  
General Corporate
                      
Segment Reporting Information [Line Items]                      
Operating profit (Loss)                 (33,319) (38,485) (26,808)
Depreciation and amortization                 2,030 2,579 2,660
Capital Expenditure                 1,905 1,902 1,796
Assets 92,511       102,311       92,511 102,311  
Vehicle Systems
                      
Segment Reporting Information [Line Items]                      
Net sales                 279,549 328,763 284,633
Other
                      
Segment Reporting Information [Line Items]                      
Net sales                 228,514 144,474 106,467
Discontinued Operations
                      
Segment Reporting Information [Line Items]                      
Capital Expenditure                   $ 707