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SUBSEQUENT EVENTS SUBSEQUENT EVENTS	6 Months Ended
SUBSEQUENT EVENTS SUBSEQUENT EVENTS	Jun. 30, 2013
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	SUBSEQUENT EVENTS On August 1, 2013, we acquired certain assets and assumed certain liabilities of a U.S.-based provider of audio and web conferencing services, for approximately $10.5 million in cash, net of working capital. Additional consideration of up to $0.5 million may be paid based on the achievement of certain revenue targets in 2013.