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LONG-TERM DEBT - New and Old Term Loan Credit Agreement Narrative (Details) - USD ($)		1 Months Ended	3 Months Ended	12 Months Ended
	Sep. 28, 2020	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Loss on debt extinguishment			$ 500,000	$ 9,504,000	$ 396,000	$ 165,000
Interest paid				22,040,000	23,411,000	26,234,000
Principal payments under term loan credit facility				138,835,000	146,393,000	50,470,000
New Term Loan Credit Agreement
Debt Instrument [Line Items]
Repayments of long-term debt			$ 30,000,000
Notes Payable, Other Payables | New Term Loan Credit Agreement
Debt Instrument [Line Items]
Debt instrument, face amount	$ 150,000,000
Percentage of tranche loan amount on equal quarterly installments	0.25%
Debt instrument, LIBOR floor rate	0.75%
Loss on debt extinguishment		$ 200,000
Proceeds from issuance of long-term debt		148,500,000
Payment of principal		$ 135,200,000
Term Loan Credit Agreement | Senior Secured Credit Facility
Debt Instrument [Line Items]
Long-term line of credit				108,800,000	138,800,000
Loss on debt extinguishment						200,000
Interest paid				3,900,000	4,800,000	7,800,000
Amortization of debt issuance costs and discounts				200,000	200,000	200,000
Principal payments under term loan credit facility					11,200,000	$ 50,500,000
Line of credit, current				$ 0	$ 0
London Interbank Offered Rate (LIBOR) | Notes Payable, Other Payables | New Term Loan Credit Agreement
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	3.25%
Base Rate | Notes Payable, Other Payables | New Term Loan Credit Agreement
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	2.25%

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Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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

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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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