Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Aug. 28, 2021	Aug. 29, 2020
Current liabilities:
Payroll and benefit related	$ 61,997	$ 46,789
Bonuses	17,693	13,803
Insurance related	34,314	34,403
Environmental related	12,279	11,172
Other	33,295	26,798
Total current liabilities	159,578	132,965
Long-term liabilities:
Benefit related	36,521	38,744
Environmental related	20,580	19,530
Asset retirement obligations	14,887	13,920
Insurance related	62,097	60,626
Total long-term liabilities	134,085	132,820
Total accrued liabilities	$ 293,663	$ 265,785

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Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred through that date and payable to insurance entities to mitigate potential loss from various risks or to satisfy a promise to provide certain coverage's to employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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