Annual report pursuant to Section 13 and 15(d)

Temporary Differences and Carryforwards of Deferred Tax Assets and Liabilities (Detail)

v3.8.0.1
Temporary Differences and Carryforwards of Deferred Tax Assets and Liabilities (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Aug. 31, 2017
Aug. 31, 2016
Aug. 31, 2015
Aug. 31, 2013
Income Tax Disclosure [Abstract]        
Net Benefit, Taxable Liquidations of Foreign Subsidiaries $ 14,900      
Unrecognized Tax Benefits 31,446 $ 29,174 $ 29,924 $ 39,509
Deferred income tax assets:        
Deferred Tax Assets Operating Loss And Tax Credit Carryforwards 41,985 36,761    
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits 17,319 25,086    
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits 14,359 8,727    
Deferred Tax Assets, Inventory 2,958 3,044    
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Other 14,224 8,317    
Total deferred income tax assets 90,845 81,935    
Valuation allowance (22,671) (8,147)    
Net deferred income tax assets 68,174 73,788    
Deferred income tax liabilities:        
Depreciation and amortization (77,548) (83,020)    
Other items (1,910) (5,493)    
Deferred income tax liabilities (79,458) (88,513)    
Net deferred income tax liability (11,284) (14,725)    
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions 6,057 1,050 2,183  
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions 297 475 8,935  
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions 627 0 633  
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations 4,008 1,027 4,464  
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities 0 0 14,180  
Unrecognized Tax Benefits, Increase (Decrease) Resulting from Foreign Currency Translation $ 553 $ (1,248) $ (1,426)