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Period Type:

Long-Term Debt - Amended Credit Agreement - Additional Information (Details)						3 Months Ended			9 Months Ended			12 Months Ended
	Mar. 06, 2020 USD ($)	Feb. 11, 2020 USD ($)	Jun. 08, 2018 USD ($)	Aug. 09, 2017 USD ($)	Jun. 02, 2017 USD ($)	May 28, 2021 USD ($)	May 29, 2020 USD ($)	Nov. 30, 2018 USD ($)	May 28, 2021 USD ($)	May 29, 2020 USD ($)	May 29, 2020 USD ($)	Aug. 29, 2019	Feb. 01, 2021 USD ($)	Aug. 28, 2020 USD ($)	Feb. 28, 2020
Debt Instrument [Line Items]
Interest rate at the end of period															8.14%
Debt instrument outstanding amount						$ 386,228,000			$ 386,228,000
Debt Instrument, unamortized discount						43,010,000			43,010,000					$ 48,586,000
Prepayment premiums										$ 204,904,000
Loss on extinguishment of debt							$ 192,000			6,822,000	$ 6,822,000
Proceeds from borrowings under revolving line of credit									$ 114,500,000	60,500,000
Incremental Term Loan
Debt Instrument [Line Items]
Interest rate at the end of period															8.16%
Amended Credit Agreement
Debt Instrument [Line Items]
Customary reinvestment rights									6 months
Percentage of net proceeds of certain asset sales or other dispositions of property				100.00%
Percentage of net cash proceeds of incurrence of certain debt				100.00%
Proceeds from IPO					$ 61,000,000.0
Loss on early repayment of long-term debt					6,700,000
Percentage of consolidated EBITDA	35.00%
Run rate cost savings period	24 months
Amended Credit Agreement \| 75% of Excess Cash Flow
Debt Instrument [Line Items]
Percentage of excess cash flow for mandatory prepayments				75.00%
Amended Credit Agreement \| 50% of Excess Cash Flow
Debt Instrument [Line Items]
Percentage of excess cash flow for mandatory prepayments				50.00%
Amended Credit Agreement \| 25% of Excess Cash Flow
Debt Instrument [Line Items]
Percentage of excess cash flow for mandatory prepayments				25.00%
Amended Credit Agreement \| 3-Month LIBOR
Debt Instrument [Line Items]
Frequency of periodic interest payments									Every one, two, three, six, nine or twelve months after the date of each borrowing
Amended Credit Agreement \| Base Rate
Debt Instrument [Line Items]
Frequency of periodic interest payments									Last day of each calendar quarter
Amended Credit Agreement \| Maximum
Debt Instrument [Line Items]
Secured leverage ratio									3.50%
Amended Credit Agreement \| Maximum \| 50% of Excess Cash Flow
Debt Instrument [Line Items]
Leverage ratio				1.5
Amended Credit Agreement \| Maximum \| 25% of Excess Cash Flow
Debt Instrument [Line Items]
Leverage ratio				1.0
Amended Credit Agreement \| Minimum
Debt Instrument [Line Items]
Retained cash proceeds from sale of assets									$ 2,000,000
Amended Credit Agreement \| Minimum \| 75% of Excess Cash Flow
Debt Instrument [Line Items]
Leverage ratio				1.5
Amended Credit Agreement \| Minimum \| 50% of Excess Cash Flow
Debt Instrument [Line Items]
Leverage ratio				1.0
Amended Credit Agreement \| Term Loans
Debt Instrument [Line Items]
Debt instrument, face amount		$ 202,900,000		$ 165,000,000
Note maturity date				Aug. 09, 2022
Repayment of outstanding debt		208,700,000
Accrued interest		3,800,000
Prepayment premiums		2,000,000.0
Unamortized debt discounts and issuance costs		4,600,000
Amended Credit Agreement \| Term Loans \| Other Income (Expense), Net
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 6,600,000
Amended Credit Agreement \| Revolving Loans
Debt Instrument [Line Items]
Debt instrument, face amount				$ 50,000,000
Note maturity date				Feb. 09, 2021
Amended Credit Agreement \| Initial Revolver Maturity Date
Debt Instrument [Line Items]
Debt instrument extended maturity date				Feb. 09, 2022
Amended Credit Agreement \| Initial Revolver Maturity Date \| Maximum
Debt Instrument [Line Items]
Secured net leverage ratio				3.0
Amended Credit Agreement \| Incremental Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount													$ 60,000,000
Frequency of periodic principal payments												Quarterly
Frequency of periodic principal payments, percentage								2.50%
Quarterly principal repayments								$ 1,500,000
Amended Credit Agreement \| Revolving Facility \| Maximum \| 3-Month LIBOR
Debt Instrument [Line Items]
Additional spread on variable rate				4.00%
Amended Credit Agreement \| Revolving Facility \| Maximum \| Base Rate
Debt Instrument [Line Items]
Additional spread on variable rate				3.00%
Amended Credit Agreement \| Revolving Facility \| Minimum \| 3-Month LIBOR
Debt Instrument [Line Items]
Additional spread on variable rate				3.75%
Amended Credit Agreement \| Revolving Facility \| Minimum \| Base Rate
Debt Instrument [Line Items]
Additional spread on variable rate				2.75%
Amended Credit Agreement \| Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount						165,000,000			$ 165,000,000
Frequency of periodic principal payments									Quarterly
Frequency of periodic principal payments, percentage				2.50%
Quarterly principal repayments				$ 4,100,000
Scheduled principal payments						$ 0	$ 0		$ 0	$ 5,600,000
Amended Credit Agreement \| Term Loan \| First Year
Debt Instrument [Line Items]
Principal prepayment premium percentage						3.00%			3.00%
Amended Credit Agreement \| Term Loan \| Second Year
Debt Instrument [Line Items]
Principal prepayment premium percentage						2.00%			2.00%
Amended Credit Agreement \| Term Loan \| Third Year
Debt Instrument [Line Items]
Principal prepayment premium percentage						1.00%			1.00%
Amended Credit Agreement \| New Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount				165,000,000
Debt instrument outstanding amount				151,000,000.0
Write off of original issue discount and debt issuance costs as an extinguishment loss					$ 15,200,000
Incremental Amendment
Debt Instrument [Line Items]
Advisor fee			$ 600,000
Incremental Amendment \| Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount			$ 60,000,000
Amended Credit Agreement
Debt Instrument [Line Items]
Debt issuance costs				8,700,000
Loss on extinguishment of debt	$ 200,000
Debt instrument variable rate	25.00%
First lien leverage ratio	3.50%
Percentage of aggregate revolving commitments	30.00%
Percentage of consolidated EBITDA	20.00%
Run rate cost savings period	12 months
Amended Credit Agreement \| Maximum
Debt Instrument [Line Items]
First lien leverage ratio	2.25%
Amended Credit Agreement \| Maximum \| 3-Month LIBOR
Debt Instrument [Line Items]
Debt instrument variable rate	3.75%
Amended Credit Agreement \| Maximum \| Base Rate
Debt Instrument [Line Items]
Debt instrument variable rate	2.75%
Amended Credit Agreement \| Minimum
Debt Instrument [Line Items]
First lien leverage ratio	2.25%
Amended Credit Agreement \| Minimum \| 3-Month LIBOR
Debt Instrument [Line Items]
Debt instrument variable rate	3.50%
Amended Credit Agreement \| Minimum \| Base Rate
Debt Instrument [Line Items]
Debt instrument variable rate	2.50%
Amended Credit Agreement \| Revolving Facility
Debt Instrument [Line Items]
Debt instrument outstanding amount						$ 0			$ 0
Debt issuance costs				3,400,000
Debt Instrument, extension of maturity amount	$ 50,000,000
Debt instrument, extension maturity date start	Feb. 09, 2021
Debt instrument, extension maturity date end	Mar. 06, 2025
Amended Credit Agreement \| Term Loan
Debt Instrument [Line Items]
Debt instrument outstanding amount				$ 165,000,000		$ 0			$ 0
Debt instrument issue discount percentage				2.00%
Debt Instrument, unamortized discount				$ 3,300,000
Debt issuance costs				$ 5,300,000
Amended Credit Agreement \| Term Loan \| 3-Month LIBOR
Debt Instrument [Line Items]
Additional spread on variable rate				6.25%
Amended Credit Agreement \| Term Loan \| Base Rate
Debt Instrument [Line Items]
Additional spread on variable rate				5.25%
Amended Credit Agreement \| Letter of Credit \| Minimum
Debt Instrument [Line Items]
Proceeds from borrowings under revolving line of credit	$ 10,000,000
Amended Credit Agreement \| Asset-Based Revolving Facilities
Debt Instrument [Line Items]
Revolving credit facilities	$ 150,000,000
Senior Secured Credit Agreement \| Revolving Facility
Debt Instrument [Line Items]
Debt instrument outstanding amount														0
Senior Secured Credit Agreement \| Term Loan
Debt Instrument [Line Items]
Debt instrument outstanding amount														$ 0