Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.8
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, 2013
May 31, 2013
Feb. 28, 2013
Nov. 30, 2012
Aug. 31, 2012
May 31, 2012
Feb. 29, 2012
Nov. 30, 2011
Aug. 31, 2013
Aug. 31, 2012
Aug. 31, 2011
Segment Reporting Information [Line Items]                      
Net sales $ 327,260 $ 344,205 $ 300,468 $ 307,809 $ 322,368 $ 343,268 $ 300,919 $ 309,966 $ 1,279,742 $ 1,276,521 $ 1,159,310
Operating profit (loss)                 190,145 204,514 172,887
Depreciation and amortization                 53,902 54,263 52,996
Discontinued Operations                 7,804 10,667 9,694
Capital Expenditure                 23,668 22,740 23,096
Assets 2,119,332       2,007,119       2,119,332 2,007,119  
Industrial
                      
Segment Reporting Information [Line Items]                      
Net sales                 422,620 419,295 393,013
Operating profit (loss)                 117,644 114,777 98,415
Depreciation and amortization                 8,553 8,358 8,655
Capital Expenditure                 3,524 5,333 3,590
Assets 280,110       268,735       280,110 268,735  
Energy
                      
Segment Reporting Information [Line Items]                      
Net sales                 363,372 349,163 293,060
Operating profit (loss)                 63,280 62,205 49,345
Depreciation and amortization                 18,451 18,115 18,152
Capital Expenditure                 9,417 8,962 8,978
Assets 817,547       540,409       817,547 540,409  
Electrical
                      
Segment Reporting Information [Line Items]                      
Assets 0       437,914       0 437,914  
Engineered Solutions
                      
Segment Reporting Information [Line Items]                      
Net sales                 493,750 508,063 473,237
Operating profit (loss)                 40,328 60,851 63,612
Depreciation and amortization                 16,949 15,093 13,916
Capital Expenditure                 7,001 3,463 5,966
Assets 652,581       667,550       652,581 667,550  
General Corporate
                      
Segment Reporting Information [Line Items]                      
Operating profit (loss)                 (31,107) (33,319) (38,485)
Depreciation and amortization                 2,145 2,030 2,579
Capital Expenditure                 867 1,905 1,902
Assets 96,488       92,511       96,488 92,511  
Vehicle Systems
                      
Segment Reporting Information [Line Items]                      
Net sales                 253,073 279,549 328,763
Other
                      
Segment Reporting Information [Line Items]                      
Net sales                 240,677 228,514 144,474
Discontinued Operations
                      
Segment Reporting Information [Line Items]                      
Capital Expenditure                 $ 2,859 $ 3,077 $ 2,660