SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2013 item	Mar. 31, 2012	Dec. 31, 2012
SEGMENT REPORTING
Number of reportable segments	4
Revenue
Revenue	$ 172,868	$ 183,087
Depreciation and amortization	25,802	27,024
Non-cash stock-based compensation	844	1,076
Operating income (loss)	17,769	18,130
Segment Assets
Net fixed assets	443,427		450,547
Goodwill	45,077		45,077
Total assets	908,189		910,875
Capital Expenditures
Capital expenditures	20,876	19,055
U.S. Wireless, Retail
Revenue
Revenue	81,282	86,683
U.S. Wireless, Wholesale
Revenue
Revenue	40,302	47,384
International Wireless
Revenue
Revenue	21,430	18,900
Wireline
Revenue
Revenue	20,564	21,731
Equipment and Other
Revenue
Revenue	9,290	8,389
U.S. Wireless
Revenue
Revenue	129,504	140,882
Depreciation and amortization	17,816	18,701
Non-cash stock-based compensation	38	39
Operating income (loss)	15,017	18,922
Segment Assets
Net fixed assets	254,404		262,372
Goodwill	32,148		32,148
Total assets	529,410		539,008
Capital Expenditures
Capital expenditures	10,001	12,547
U.S. Wireless \| U.S. Wireless, Retail
Revenue
Revenue	81,282	86,683
U.S. Wireless \| U.S. Wireless, Wholesale
Revenue
Revenue	40,302	47,384
U.S. Wireless \| Wireline
Revenue
Revenue	152	144
U.S. Wireless \| Equipment and Other
Revenue
Revenue	7,768	6,671
International Integrated Telephony
Revenue
Revenue	22,692	23,571
Depreciation and amortization	4,391	4,528
Operating income (loss)	6,332	6,235
Segment Assets
Net fixed assets	124,219		126,532
Total assets	195,730		191,314
Capital Expenditures
Capital expenditures	4,120	2,561
International Integrated Telephony \| International Wireless
Revenue
Revenue	6,754	6,348
International Integrated Telephony \| Wireline
Revenue
Revenue	15,684	16,791
International Integrated Telephony \| Equipment and Other
Revenue
Revenue	254	432
Island Wireless
Revenue
Revenue	15,894	13,804
Depreciation and amortization	2,595	2,786
Operating income (loss)	1,634	(1,639)
Segment Assets
Net fixed assets	32,109		33,745
Goodwill	5,438		5,438
Total assets	79,964		77,120
Capital Expenditures
Capital expenditures	1,111	1,430
Island Wireless \| International Wireless
Revenue
Revenue	14,676	12,552
Island Wireless \| Equipment and Other
Revenue
Revenue	1,218	1,252
U.S. Wireline
Revenue
Revenue	6,631	4,830
Depreciation and amortization	642	746
Operating income (loss)	(408)	(423)
Segment Assets
Net fixed assets	22,097		17,489
Goodwill	7,491		7,491
Total assets	37,760		30,888
Capital Expenditures
Capital expenditures	5,095	1,859
U.S. Wireline \| Wireline
Revenue
Revenue	6,581	4,796
U.S. Wireline \| Equipment and Other
Revenue
Revenue	50	34
Reconciling Items
Revenue
Revenue	(1,853)
Depreciation and amortization	358	263
Non-cash stock-based compensation	806	1,037
Operating income (loss)	(4,806)	(4,965)
Segment Assets
Net fixed assets	10,598		10,409
Total assets	65,325		72,545
Capital Expenditures
Capital expenditures	549	658
Reconciling Items \| Wireline
Revenue
Revenue	$ (1,853)

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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