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DEBT - Revolving Credit Agreement (Details)			3 Months Ended		6 Months Ended
	Oct. 06, 2021 USD ($)	Dec. 21, 2018 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Sep. 28, 2021 USD ($)	Sep. 27, 2021 USD ($)	Sep. 28, 2020 USD ($)
Debt Instrument [Line Items]
Long-term debt, gross			$ 459,000,000		$ 459,000,000		$ 433,035,000
Interest expense			5,218,000	$ 6,034,000	10,131,000	$ 12,184,000
Principal payments under term loan credit facility					0	30,000,000
Revolving Credit Agreement
Debt Instrument [Line Items]
Line of credit facility accordion feature increase amount			50,000,000		50,000,000			$ 50,000,000
Line of credit facility, maximum borrowing capacity								$ 225,000,000	$ 175,000,000
Line of credit facility accordion feature increase limit			275,000,000		275,000,000
Line of credit facility, unused capacity, commitment fee percentage		0.20%
Fixed charge coverage ratio		1.0
Line of credit facility, excess availability, commitment percentage, threshold		10.00%
Debt instrument, covenant period		30 days
Long-term line of credit			30,000,000		30,000,000		50,000,000
Long-term debt, gross			59,000,000	0	59,000,000	0
Interest expense			500,000	$ 0	800,000	$ 0
Liquidity position to meet future obligations, amount			$ 298,100,000		$ 298,100,000		$ 258,000,000
Revolving Credit Agreement | Maximum
Debt Instrument [Line Items]
Line of credit facility, excess availability applied to principal, commitment percentage		15.00%
Revolving Credit Agreement | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.25%
Revolving Credit Agreement | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		1.75%
Revolving Credit Agreement | Base Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.25%
Revolving Credit Agreement | Base Rate | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.75%
New Senior Notes | Notes Payable, Other Payables
Debt Instrument [Line Items]
Principal payments under term loan credit facility	$ 108,800,000
New Term Loan Credit Agreement | Notes Payable, Other Payables
Debt Instrument [Line Items]
Notes issued, aggregate principal amount										$ 150,000,000
Letter of Credit | Revolving Credit Agreement
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 15,000,000
Bridge Loan | Revolving Credit Agreement
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 17,500,000

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- Definition

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

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Face (par) amount of debt instrument at time of issuance.

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Amount of the cost of borrowed funds accounted for as interest expense.

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- Definition

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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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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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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Represents the minimum ratio for coverage of fixed charge.

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Line of Credit Facility Accordion Feature Increase Amount

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Line of Credit Facility, Excess Availability, Commitment Percentage, Threshold

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The amount of liquidity position to meet the future obligations for the entity.

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