Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Details)

v3.2.0.727
Income Taxes - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
May. 31, 2015
Feb. 28, 2015
May. 31, 2014
May. 31, 2015
May. 31, 2014
Aug. 31, 2014
Income Tax Disclosure [Abstract]            
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest $ 34,971   $ 52,228 $ 4,579 $ 119,377  
Income tax expense (benefit) $ (2,987)   $ 1,671 $ 6,785 $ 13,511  
Effective Tax Rate (8.50%)   3.20% 148.20% 11.30%  
Impairment charge $ 0 $ 84,353 $ 0 $ 84,353 $ 0  
Asset Impairment Charge Income Tax Benefit   $ 1,700        
Tax Adjustments, Settlements, and Unusual Provisions 19,200          
Unrecognized Tax Benefits 21,200     21,200   $ 32,300
Valuation Allowances and Reserves, Adjustments 5,200          
Discrete item     10,500      
Unrecognized Tax Benefits, Period Increase (Decrease) 5,000   $ 6,800      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued $ 2,100     $ 2,100   $ 2,000