UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Data center services	$ 41,493	$ 32,481	$ 81,431	$ 64,023
Internet protocol (IP) services	27,194	27,929	54,284	55,791
Total revenues	68,687	60,410	135,715	119,814
Direct costs of network, sales and services, exclusive of depreciation and amortization, shown below:
Data center services	22,649	19,733	43,619	38,263
IP services	9,992	10,836	20,177	21,336
Direct costs of customer support	6,481	5,374	13,209	10,485
Direct costs of amortization of acquired technologies	1,179	875	2,359	1,750
Sales and marketing	8,314	7,731	16,404	15,564
General and administrative	10,676	7,449	20,901	16,577
Depreciation and amortization	8,664	8,768	16,579	16,822
(Gain) loss on disposal of property and equipment, net	(4)	11	(20)	84
Restructuring and impairments	645	1,304	688	1,492
Total operating costs and expenses	68,596	62,081	133,916	122,373
Income (loss) from operations	91	(1,671)	1,799	(2,559)
Non-operating expense:
Interest expense	1,754	875	3,339	1,522
Other, net	254	48	295	87
Total non-operating expense	2,008	923	3,634	1,609
Loss before income taxes and equity in (earnings) of equity-method investment	(1,917)	(2,594)	(1,835)	(4,168)
Provision for income taxes	179	106	215	179
Equity in (earnings) of equity-method investment, net of taxes	(99)	(88)	(160)	(235)
Net loss	(1,997)	(2,612)	(1,890)	(4,112)
Other comprehensive (loss) income:
Foreign currency translation adjustment, net of income taxes	(114)	20	(29)	220
Comprehensive loss	$ (2,111)	$ (2,592)	$ (1,919)	$ (3,892)
Basic and diluted net loss per share (in dollars per share)	$ (0.04)	$ (0.05)	$ (0.04)	$ (0.08)
Weighted average shares outstanding used in computing basic and diluted net loss per share (in shares)	50,453	50,174	50,497	50,251