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PENDING SALE OF U.S. RETAIL WIRELESS BUSINESS (Details) (USD $) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Mar. 31, 2013 Alltel Sale AT&T | Jan. 21, 2013 Alltel Sale AT&T
Pending Sale Of U.S. Retail Wireless Business |  |  |  |
Consideration for sale of operations in all-cash transaction |  |  |  | $ 780,000,000
Consolidated revenues | 172,868,000 | 183,087,000 | 108,000,000 |
Percentage of consolidated revenues |  |  | 62.00% |
Operating income | $ 17,769,000 | $ 18,130,000 | $ 4,200,000 |
Percentage of consolidated operating income |  |  | 24.00% |

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