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Commitments and Contingencies (Tables)
 9 Months Ended
May 31, 2021
Commitments And Contingencies Disclosure [Abstract]  
Summary of Undiscounted Environmental Remediation Liability Classifications The following table summarizes the undiscounted environmental remediation liability classifications included in the condensed consolidated balance sheets as of May 31, 2021, May 31, 2020, and August 31, 2020:

 

($ in thousands)

 

May 31,

2021

 

 

May 31,

2020

 

 

August 31,

2020

 

Other current liabilities

 

$

971

 

 

$

1,182

 

 

$

1,115

 

Other noncurrent liabilities

 

 

15,155

 

 

 

14,257

 

 

 

15,030

 

Total environmental remediation liabilities

 

$

16,126

 

 

$

15,439

 

 

$

16,145