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SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 item	Jun. 30, 2011	Dec. 31, 2011
SEGMENT REPORTING
Number of reportable segments			4
Revenue
Revenue	$ 185,293	$ 193,753	$ 368,183	$ 381,908
Depreciation and amortization	26,582	25,384	53,606	50,192
Non-cash stock-based compensation	813	812	1,908	1,890
Operating income (loss)	23,074	6,277	41,233	16,667
Segment Assets
Net fixed assets	456,239		456,239		483,203
Goodwill	45,077		45,077		45,077
Total assets	876,812		876,812		873,731
Capital Expenditures
Capital expenditures			32,272	45,428
U.S. Wireless, Retail
Revenue
Revenue	84,062	95,410	170,812	195,079
U.S. Wireless, Wholesale
Revenue
Revenue	51,569	51,870	98,952	96,567
International Wireless
Revenue
Revenue	20,315	18,434	39,270	32,497
Wireline
Revenue
Revenue	20,889	20,886	42,437	41,557
Equipment and Other
Revenue
Revenue	8,458	7,153	16,712	16,208
U.S. Wireless
Revenue
Revenue	142,483	153,249	283,364	305,355
Depreciation and amortization	18,324	17,363	37,026	34,771
Non-cash stock-based compensation	58	58	116	367
Operating income (loss)	23,978	6,507	42,900	16,935
Segment Assets
Net fixed assets	273,346		273,346		296,279
Goodwill	32,148		32,148		32,148
Total assets	536,942		536,942		544,388
Capital Expenditures
Capital expenditures			20,411	30,762
U.S. Wireless | U.S. Wireless, Retail
Revenue
Revenue	84,062	95,410	170,812	195,079
U.S. Wireless | U.S. Wireless, Wholesale
Revenue
Revenue	51,553	51,870	98,936	96,567
U.S. Wireless | Wireline
Revenue
Revenue	154	139	298	278
U.S. Wireless | Equipment and Other
Revenue
Revenue	6,714	5,830	13,318	13,431
International Integrated Telephony
Revenue
Revenue	23,219	22,750	46,573	44,999
Depreciation and amortization	4,659	4,557	9,017	9,104
Operating income (loss)	4,141	6,640	8,190	12,884
Segment Assets
Net fixed assets	123,972		123,972		129,069
Total assets	177,342		177,342		171,676
Capital Expenditures
Capital expenditures			4,131	8,198
International Integrated Telephony | International Wireless
Revenue
Revenue	6,705	6,970	13,052	13,631
International Integrated Telephony | Wireline
Revenue
Revenue	15,990	15,674	32,564	31,176
International Integrated Telephony | Equipment and Other
Revenue
Revenue	524	106	957	192
Island Wireless
Revenue
Revenue	14,830	12,681	28,655	21,451
Depreciation and amortization	2,783	2,453	5,569	4,323
Operating income (loss)	287	(2,440)	(1,324)	(4,103)
Segment Assets
Net fixed assets	37,395		37,395		40,446
Goodwill	5,438		5,438		5,438
Total assets	80,865		80,865		84,057
Capital Expenditures
Capital expenditures			2,521	3,486
Island Wireless | International Wireless
Revenue
Revenue	13,610	11,464	26,218	18,866
Island Wireless | Equipment and Other
Revenue
Revenue	1,220	1,217	2,437	2,585
U.S. Wireline
Revenue
Revenue	4,761	5,073	9,591	10,103
Depreciation and amortization	693	791	1,438	1,577
Operating income (loss)	(666)	51	(1,089)	10
Segment Assets
Net fixed assets	11,698		11,698		9,126
Goodwill	7,491		7,491		7,491
Total assets	25,550		25,550		22,790
Capital Expenditures
Capital expenditures			3,538	1,220
U.S. Wireline | U.S. Wireless, Wholesale
Revenue
Revenue	16		16
U.S. Wireline | Wireline
Revenue
Revenue	4,745	5,073	9,575	10,103
Reconciling Items
Revenue
Depreciation and amortization	123	220	556	417
Non-cash stock-based compensation	755	754	1,792	1,523
Operating income (loss)	(4,666)	(4,481)	(7,444)	(9,059)
Segment Assets
Net fixed assets	9,828		9,828		8,283
Total assets	56,113		56,113		50,820
Capital Expenditures
Capital expenditures			$ 1,671	$ 1,762

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