Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Summary of Financial Information by Reportable Segment and Product Line (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2017
Aug. 31, 2016
Aug. 31, 2015
Segment Reporting Information [Line Items]      
Impairment and other divestiture charges $ 116,979    
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal 0 $ (5,092) $ 0
Net sales 1,095,784 1,149,410 1,249,254
Operating profit (loss) (50,236) (100,217) 53,554
Depreciation and amortization 43,110 47,777 53,239
Capital Expenditure 28,195 20,209 22,516
Assets 1,516,955 1,438,660  
Industrial Tools [Member]      
Segment Reporting Information [Line Items]      
Net sales 335,569 314,832 355,170
Heavy Lifting Technology [Member] [Member]      
Segment Reporting Information [Line Items]      
Net sales 44,186 44,985 47,294
Industrial      
Segment Reporting Information [Line Items]      
Net sales 379,755 359,817 402,464
Operating profit (loss) 84,936 79,773 105,652
Depreciation and amortization 7,583 8,175 8,257
Capital Expenditure 6,566 2,570 1,249
Assets 329,134 308,222  
Energy Maintenance & Integrity [Member]      
Segment Reporting Information [Line Items]      
Net sales 225,716 278,881 246,357
Other Energy Solutions [Member]      
Segment Reporting Information [Line Items]      
Net sales 83,878 113,849 165,518
Energy      
Segment Reporting Information [Line Items]      
Impairment and other divestiture charges 117,000    
Net sales 309,594 392,731 411,875
Operating profit (loss) (119,020) (107,528) (41,351)
Depreciation and amortization 18,943 21,944 26,532
Capital Expenditure 12,076 9,355 11,864
Assets 482,963 479,169  
On-Highway [Member]      
Segment Reporting Information [Line Items]      
Net sales 215,831 209,575 220,889
Agriculture, Off-Highway and Other [Member]      
Segment Reporting Information [Line Items]      
Net sales 190,604 187,287 214,026
Engineered Solutions      
Segment Reporting Information [Line Items]      
Net sales 406,435 396,862 434,915
Operating profit (loss) 16,883 (42,991) 19,789
Depreciation and amortization 14,572 15,910 16,652
Capital Expenditure 6,857 5,974 8,472
Assets 531,068 493,840  
General Corporate      
Segment Reporting Information [Line Items]      
Operating profit (loss) (33,035) (29,471) (30,536)
Depreciation and amortization 2,012 1,749 1,798
Capital Expenditure 2,696 2,310 $ 931
Assets $ 173,790 $ 157,429