CHANGE IN ORGANIZATIONAL STRUCTURE (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues	$ 68,907	$ 73,940	$ 210,682	$ 224,180
Data center and network services
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		0		0
Direct costs of sales and services, exclusive of depreciation and amortization		0		0
Cloud and hosting services
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		0		0
Direct costs of sales and services, exclusive of depreciation and amortization		0		0
INAP COLO
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues	51,344	54,998	156,727	166,707
Direct costs of sales and services, exclusive of depreciation and amortization	20,785	26,676	67,661	79,745
INAP CLOUD
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues	17,563	18,942	53,955	57,473
Direct costs of sales and services, exclusive of depreciation and amortization	$ 4,160	4,886	$ 12,758	14,264
As Previously Reported | Data center and network services
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		49,767		151,099
Direct costs of sales and services, exclusive of depreciation and amortization		25,042		74,065
As Previously Reported | Cloud and hosting services
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		24,173		73,081
Direct costs of sales and services, exclusive of depreciation and amortization		6,520		19,944
As Previously Reported | INAP COLO
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		0		0
Direct costs of sales and services, exclusive of depreciation and amortization		0		0
As Previously Reported | INAP CLOUD
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		0		0
Direct costs of sales and services, exclusive of depreciation and amortization		0		0
Reclassification | Data center and network services
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		(49,767)		(151,099)
Direct costs of sales and services, exclusive of depreciation and amortization		(25,042)		(74,065)
Reclassification | Cloud and hosting services
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		(24,173)		(73,081)
Direct costs of sales and services, exclusive of depreciation and amortization		(6,520)		(19,944)
Reclassification | INAP COLO
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		54,998		166,707
Direct costs of sales and services, exclusive of depreciation and amortization		26,676		79,745
Reclassification | INAP CLOUD
Change In Organizational Structure And Realignment Of Expenses [Line Items]
Total revenues		18,942		57,473
Direct costs of sales and services, exclusive of depreciation and amortization		$ 4,886		$ 14,264