ACCRUED PAYROLL AND EXPENSES, OTHER LONG-TERM LIABILITIES, AND CONTINGENT CONSIDERATION - Narrative (Details)	Jun. 28, 2020 USD ($)
Income Taxes [Line Items]
Derivative, notional amount	$ 25,000,000.0
Other long-term liabilities
Income Taxes [Line Items]
Deferred employer FICA	2,700,000
Interest Rate Swap \| Other long-term liabilities
Income Taxes [Line Items]
Derivative, notional amount	$ 200,000

Carrying value as of the balance sheet date of obligations incurred and payable for statutory payroll taxes incurred through that date and withheld from employees pertaining to services received from them, including entity's matching share of the employees FICA taxes and contributions to the state and federal unemployment insurance programs.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Name:	us-gaap_AccruedPayrollTaxesCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant