GOODWILL - Summary of re-allocations of Goodwill (Details) - USD ($)	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill	$ 50,209,000	$ 50,209,000
Goodwill, Transfers	0
Data center and network services
Goodwill [Line Items]
Goodwill	0	0
Goodwill, Transfers	0
Cloud and hosting services
Goodwill [Line Items]
Goodwill	0	50,209,000
Goodwill, Transfers	(50,209,000)
INAP COLO
Goodwill [Line Items]
Goodwill	6,003,000	0
Goodwill, Transfers	6,003,000
INAP CLOUD
Goodwill [Line Items]
Goodwill	44,206,000	$ 0
Goodwill, Transfers	$ 44,206,000