REVENUE RECOGNITION - Additional Information (Details)	6 Months Ended
Jun. 30, 2018 number_of_day
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, billing cycle	30
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract with customer, billing cycle	150

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_RevenueInitialApplicationPeriodCumulativeEffectTransitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration