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ACQUISITIONS (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended		1 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	May 31, 2011 BDC	May 02, 2011 M3 Wireless, Ltd. BDC	Jun. 30, 2012 M3 Wireless, Ltd. Customer relationships BDC	May 02, 2011 M3 Wireless, Ltd. Customer relationships BDC
Acquisitions
Ownership interest before merger (as a percent)					58.00%
Ownership interest after merger (as a percent)					42.00%
Total consideration						$ 6,655
Purchase price allocation:
Net working capital						675
Property, plant and equipment						10,577
Customer relationships								2,600
Telecommunications licenses						6,100
Goodwill						3,105
Note payable- affiliate						(7,012)
Other long term liabilities						(200)
Non-controlling interests						(9,190)
Net assets acquired						6,655
Assets acquired, related information
Amortization period							12 years
As Reported
Revenue	185,293	193,753	368,183	381,908
Net income	10,530	1,815	19,851	6,312
Earnings per share:
Basic (in dollars per share)	$ 0.68	$ 0.12	$ 1.28	$ 0.41
Diluted (in dollars per share)	$ 0.67	$ 0.12	$ 1.27	$ 0.41
As Adjusted
Revenue		195,247		387,996
Net income		$ 1,788		$ 6,847
Earnings per share:
Basic (in dollars per share)		$ 0.12		$ 0.44
Diluted (in dollars per share)		$ 0.12		$ 0.44