UNAUDITED QUARTERLY RESULTS (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of unaudited quarterly financial information

The quarterly operating results below are not necessarily indicative of those in future periods (in thousands, except for share data).

	2017 Quarter Ended
	March 31			June 30			September 30			December 31
Revenues	$	72,133		$	69,642		$	68,907		$	70,035
Costs of sales and services, exclusive of depreciation and amortization	29,045			26,429			24,945			25,798
Costs of customer support	7,264			6,133			6,237			6,122
Exit activities, restructuring and impairments	1,023			4,628			745			(148		)
Net loss attributable to INAP stockholders	(8,230		)	(19,283		)	(10,895		)	(6,934		)
Basic and diluted net loss per share	$	(0.51	)	$	(0.97	)	$	(0.55	)	$	(0.35	)

	2016 Quarter Ended
	March 31			June 30			September 30			December 31
Revenues	$	75,924		$	74,315		$	73,940		$	74,117
Costs of sales and services, exclusive of depreciation and amortization	31,077			31,370			31,562			30,246
Costs of customer support	8,804			7,919			7,985			7,475
Goodwill impairment	—			—			78,169			1,936
Exit activities, restructuring and impairments	201			152			1,670			5,213
Net loss attributable to INAP stockholders	(9,644		)	(10,693		)	(91,297		)	(13,110		)
Basic and diluted net loss per share	$	(0.75	)	$	(0.82	)	$	(7.01	)	$	(1.01	)