CHANGE IN ORGANIZATIONAL STRUCTURE - Narrative (Details)	3 Months Ended
Mar. 31, 2018 point_of_presence
Segment Reporting Information [Line Items]
Number of POPs (point of presence)	98
Network services
Segment Reporting Information [Line Items]
Number of POPs (point of presence)	97

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.

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Balance Type:	na
Period Type:	duration