Commitments and Contingencies (Tables)

6 Months Ended

Feb. 29, 2020

Commitments And Contingencies Disclosure [Abstract]

Schedule of Changes to Environmental Liabilities

The changes to the Company’s environmental liabilities for the twenty-six weeks ended February 29, 2020 were as follows (in thousands):

	February 29, 2020
Beginning balance as of August 31, 2019	$	27,718
Revisions in estimates		1,200
Costs incurred for which reserves have been provided		(627	)
Insurance proceeds		62
Interest accretion		269
Changes in discount rates		781
Balance as of February 29, 2020	$	29,403

Schedule of Anticipated Payments and Insurance Proceeds of Currently Identified Environmental Remediation Liabilities

Anticipated payments and insurance proceeds of currently identified environmental remediation liabilities as of February 29, 2020, for the next five fiscal years and thereafter, as measured in current dollars, are reflected below.

(In thousands)	2020			2021			2022			2023			2024			Thereafter			Total
Estimated costs – current dollars	$	10,518		$	2,186		$	1,353		$	1,091		$	1,058		$	12,032		$	28,238
Estimated insurance proceeds		(97	)		(173	)		(159	)		(173	)		(159	)		(693	)		(1,454	)
Net anticipated costs	$	10,421		$	2,013		$	1,194		$	918		$	899		$	11,339		$	26,784
Effect of inflation																				7,522
Effect of discounting																				(4,903	)
Balance as of February 29, 2020																			$	29,403