Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Name:	us-gaap_GoodwillImpairmentLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

OPERATING SEGMENTS AND GEOGRAPHIC INFORMATION - Narrative (Details)	1 Months Ended	12 Months Ended
	Aug. 31, 2019 USD ($)	Dec. 31, 2019 USD ($) point_of_presence segment	Dec. 31, 2018 USD ($)
Segment Reporting [Abstract]
Number of reportable segments \| segment		2
Goodwill and intangibles impairment \| $	$ 0	$ 45,009,000	$ 0
Segment Reporting Information [Line Items]
Number of POPs		94
Network Services
Segment Reporting Information [Line Items]
Number of POPs		94