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MOBILITY FUND (Details) (USD $) | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended |  | 1 Months Ended | 0 Months Ended | 1 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 item | Sep. 30, 2012 | Sep. 30, 2013 U.S. Wireless | Sep. 30, 2012 U.S. Wireless | Sep. 30, 2013 U.S. Wireless | Sep. 30, 2012 U.S. Wireless | Jun. 30, 2013 Letters of credit | Aug. 31, 2013 Alltel Mobility Funds | Sep. 20, 2013 Alltel Mobility Funds Letters of credit | Aug. 31, 2013 Wholesale Mobility Funds | Sep. 30, 2013 Wholesale Mobility Funds U.S. Wireless | Sep. 30, 2013 Wholesale Mobility Funds U.S. Wireless Other current liabilities | Sep. 30, 2013 Wholesale Mobility Funds U.S. Wireless Other long-term liabilities
MOBILITY FUND |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of new funds created by FCC |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Mobility Funds approved by FCC |  |  |  |  |  |  |  |  |  | $ 47,000,000 |  | $ 21,700,000 |  |  |
Letters of credit posted to USAC |  |  |  |  |  |  |  |  | 29,900,000 |  |  |  |  |  |
Cash payment of penalty fees for default |  |  |  |  |  |  |  |  |  |  | 4,600,000 |  |  |  |
Revenue | $ 79,350,000 | $ 73,312,000 | $ 215,807,000 | $ 207,884,000 | $ 33,057,000 | $ 29,279,000 | $ 81,367,000 | $ 78,632,000 |  |  |  |  | $ 7,300,000 | $ 3,100,000 | $ 4,200,000

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- Definition Represents the amount of Mobility Fund support approved by Federal Communications Commission (FCC). + References No definition available. + Details
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- Definition Represents the number of new funds created by Federal Communications Commission (FCC). + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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