Commitments and Contingencies (Tables)

6 Months Ended

Feb. 28, 2019

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 balance sheet as of February 28, 2019, February 28, 2018, and August 31, 2018:

($ in thousands)	February 28, 2019		February 28, 2018		August 31, 2018
Other current liabilities	$	1,243	$	1,544	$	1,264
Other noncurrent liabilities		14,993		15,677		15,319
Total environmental remediation liabilities	$	16,236	$	17,221	$	16,583