SALES SERVICE REVENUE, NET AND ACCOUNTS RECEIVABLE (Schedule of Customer Revenue and Accounts Receivable Concentrations) (Detail) - Customer Concentration Risk [Member]	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Customer A [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			13.00%
Customer D [Member]
Concentration Risk [Line Items]
Concentration risk, percentage				26.00%
Customer E [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			11.00%
Sales Revenue, Net [Member] | Customer B [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		11.00%
Sales Revenue, Net [Member] | Customer C [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	11.00%
Sales Revenue, Net [Member] | Customer D [Member]
Concentration Risk [Line Items]
Concentration risk, percentage		29.00%
Sales Revenue, Net [Member] | Customer E [Member]
Concentration Risk [Line Items]
Concentration risk, percentage	12.00%
Accounts Receivable [Member] | Customer A [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			14.00%
Accounts Receivable [Member] | Customer B [Member]
Concentration Risk [Line Items]
Concentration risk, percentage					17.00%
Accounts Receivable [Member] | Customer C [Member]
Concentration Risk [Line Items]
Concentration risk, percentage					12.00%
Accounts Receivable [Member] | Customer E [Member]
Concentration Risk [Line Items]
Concentration risk, percentage			10.00%