PROPERTY AND EQUIPMENT (Details)	6 Months Ended
	Jun. 30, 2012
Network equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	5 years
Capitalized software
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	5 years
Leasehold improvements | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	10 years
Leasehold improvements | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	25 years
Original | Network equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Original | Capitalized software
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	3 years
Original | Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated Useful Life (in years)	7 years