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COMMITMENTS AND CONTINGENCIES (Details) (USD $)
In Millions, unless otherwise specified
1 Months Ended 9 Months Ended
Aug. 31, 2013
Alltel Mobility Funds
Aug. 31, 2013
Wholesale Mobility Funds
Nov. 30, 2007
Lawsuit filed by CTL
Minimum
Sep. 30, 2013
Pending litigation, adverse outcome
Commitments and contingencies        
Period for which litigation proceedings and other disputes have not been the subject of discussions or other significant activity       5 years
Accrued contingent liability       $ 5.0
Mobility Funds approved by FCC 47.0 21.7    
Damages asserted     $ 200