BASIS OF PRESENTATION (Details) - USD ($)	Sep. 30, 2020	Jan. 16, 2018
Summary Of Significant Accounting Policies [Line Items]
Deferred employer payroll taxes	$ 7,400,000
Senior Secured Revolving Credit Facility \| Line of Credit
Summary Of Significant Accounting Policies [Line Items]
Current borrowing capacity	317,000,000
Credit facility	$ 1,000,000,000.0	$ 1,000,000,000.0

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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