SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012 Reporting_Unit	Dec. 31, 2011	Dec. 31, 2010
Tangible And Intangible Assets [Line Items]
Capitalized cost of internal-use software	$ 6.7	$ 9.8	$ 4.9
Unamortized software costs	16.7	13.4
Amortization expense capitalized	3.4	2.1
Number of reporting units for valuation of goodwill and other intangible asset	3
Data Center Services
Tangible And Intangible Assets [Line Items]
Impairment charges for develop software	$ 0.4	$ 0.5
Network equipment
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	5 years
Leasehold improvements
Tangible And Intangible Assets [Line Items]
Amortized period of assets	10 years
Customer relationships and trade names
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	10 years
Minimum
Tangible And Intangible Assets [Line Items]
Percentage of ownership interest in the voting stock	20.00%
Minimum | Furniture Equipment and Software
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	5 years
Minimum | Leasehold improvements
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	10 years
Duration of lease obligations and commitments	4 years
Minimum | Acquired technology
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	5 years
Maximum
Tangible And Intangible Assets [Line Items]
Percentage of ownership interest in the voting stock	50.00%
Maximum | Furniture Equipment and Software
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	7 years
Maximum | Leasehold improvements
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	25 years
Duration of lease obligations and commitments	25 years
Maximum | Acquired technology
Tangible And Intangible Assets [Line Items]
Estimated useful lives of assets (in years)	8 years