Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($) $ in Thousands	Aug. 29, 2020	Aug. 31, 2019
Current liabilities:
Payroll and benefit related	$ 46,789	$ 36,634
Bonuses	13,803	14,288
Insurance related	34,403	31,778
Environmental related	11,172	9,785
Other	26,798	19,236
Total current liabilities	132,965	111,721
Long-term liabilities:
Benefit related	38,744	35,883
Environmental related	19,530	17,933
Asset retirement obligations	13,920	12,727
Insurance related	60,626	50,531
Total long-term liabilities	132,820	117,074
Total accrued liabilities	$ 265,785	$ 228,795

Employee related liabilities noncurrent.

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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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