OPERATING SEGMENTS (Tables)

12 Months Ended

Dec. 31, 2012

Segment Reporting [Abstract]

Schedule of operating results for business segments, along with reconciliations from segment profit to loss before income taxes and equity in (earnings) of equity-method investment

	Year Ended December 31,
	2012			2011			2010
Revenues:
Data center services	$	167,286		$	133,453		$	128,200
IP services		106,306			111,175			115,964
Total revenues		273,592			244,628			244,164
Direct costs of network, sales and services, exclusive of depreciation and amortization:
Data center services		90,604			78,907			82,761
IP services		40,350			41,403			44,662
Total direct costs of network, sales and services, exclusive of depreciation and amortization		130,954			120,310			127,423
Segment profit:
Data center services		76,682			54,546			45,439
IP services		65,956			69,772			71,302
Total segment profit		142,638			124,318			116,741
Exit activities, restructuring and impairments		1,422			2,833			1,411
Other operating expenses, including direct costs of customer support, depreciation and amortization		137,452			125,408			116,226
Income (loss) from operations		3,764			(3,923	)		(896	)
Non-operating expense		7,849			3,866			2,170
Loss before income taxes and equity in (earnings) of equity-method investment	$	(4,085	)	$	(7,789	)	$	(3,066	)

Schedule of total assets by segment

	December 31,
	2012		2011
Data center services	$	233,727	$	215,004
IP services		166,985		141,706
	$	400,712	$	356,710