COMMITMENTS AND CONTINGENCIES (Details) - USD ($)	1 Months Ended
	May 31, 2020	Sep. 30, 2020
Line of Credit Facility [Line Items]
Letters of credit outstanding	$ 21,500,000
Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility term	3 years
Line of credit facility, maximum borrowing capacity	$ 75,000,000.0
Commitment fee percentage	0.25%
Debt issuance costs		$ 400,000
Remaining borrowing capacity		53,500,000
Long-term line of credit		$ 0
Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread	1.25%
Revolving Credit Facility | Base Rate
Line of Credit Facility [Line Items]
Basis spread	0.25%
Letter of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 25,000,000.0
Unused capacity, commitment fee percentage	0.70%
Credit Agreement Sublimit
Line of Credit Facility [Line Items]
Letters of credit outstanding	$ 21,500,000