Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount of the required periodic payments applied to principal.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Weighted average interest rate of debt outstanding.

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Gross amount of debt extinguished.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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The effective interest rate during the reporting period.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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Capitalized Costs Of Lender And Third-Party Fees

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Amount of the voluntary repayments applied to principal.

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No definition available.

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LONG-TERM DEBT - Narrative (Details) - USD ($)			1 Months Ended		3 Months Ended			12 Months Ended
LONG-TERM DEBT - Narrative (Details) - USD ($)	Jul. 15, 2017	May 19, 2016	Mar. 31, 2020	May 31, 2019	Jun. 27, 2020	Dec. 28, 2019	Dec. 29, 2018	Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018	Dec. 17, 2019	Dec. 16, 2019
Long Term Debt
Additional deferred financing fees incurred								$ 50,000,000	$ 0	$ 0
Loss on prepayment, modification, or extinguishment of debt								1,064,000	643,000	694,000
Borrowings under revolving line of credit								50,000,000	0	0
Interest paid								$ 8,358,000	$ 19,396,000	$ 28,504,000
Loan B, due 2023
Long Term Debt
Loss on prepayment, modification, or extinguishment of debt							$ 700,000
Voluntary debt repayments on principal							47,600,000
Interest paid							$ 600,000
Debt owed to Rambler On \| Unsecured promissory note
Long Term Debt
Interest paid				$ 100,000
Repayments of debt				$ 1,500,000
Revolving credit facility
Long Term Debt
Additional deferred financing fees incurred	$ 2,000,000.0
Revolving credit facility \| Line of Credit
Long Term Debt
Available borrowing capacity		$ 100,000,000.0									$ 150,000,000.0	$ 100,000,000.0
Borrowings under revolving line of credit			$ 50,000,000.0
Extinguishment of debt, amount					$ 50,000,000.0
Weighted average interest rate								2.92%
Outstanding balance								$ 0
Revolving credit facility \| Line of Credit \| Minimum
Long Term Debt
Commitment fee percentage								0.175%
Revolving credit facility \| Line of Credit \| Minimum \| London Interbank Offered Rate (LIBOR)
Long Term Debt
Basis spread on variable rate (as a percentage)								1.75%
Revolving credit facility \| Line of Credit \| Maximum
Long Term Debt
Commitment fee percentage								0.375%
Revolving credit facility \| Line of Credit \| Maximum \| London Interbank Offered Rate (LIBOR)
Long Term Debt
Basis spread on variable rate (as a percentage)								2.75%
Term loan A
Long Term Debt
Available borrowing capacity		300,000,000.0
Loss on prepayment, modification, or extinguishment of debt						$ 600,000		$ 1,100,000
Capitalized costs of new lender and third-party fees						$ 2,100,000
Interest rate on borrowings								2.72%	6.05%
Voluntary debt repayments on principal								$ 150,000,000.0
Term loan A \| Maturity Period, Period One
Long Term Debt
Periodic payment interest								1.25%
Term loan A \| Maturity Period, Period Two
Long Term Debt
Periodic payment interest								1.875%
Term loan A \| Debt Instrument, Redemption, Period One
Long Term Debt
Principal payments due quarterly		3,800,000
Term loan A \| Debt Instrument, Redemption, Period Two
Long Term Debt
Principal payments due quarterly		5,600,000
Term loan A \| Line of Credit
Long Term Debt
Available borrowing capacity											$ 300,000,000.0	$ 298,000,000.0
Term loan A \| Original Credit Facility
Long Term Debt
Available borrowing capacity		445,000,000.0
Term loan B
Long Term Debt
Available borrowing capacity		$ 105,000,000.0
Letters of credit
Long Term Debt
Available borrowing capacity								$ 20,000,000.0