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Variable Interest Entities VIEs (Tables)
3 Months Ended
Mar. 31, 2012
Variable Interest Intities VIEs  
Consolidated VIE assets and liabilities
  March 31, December 31,
 2012 2011
       
(Dollars in thousands)     
Assets     
 Cash$4,115 $12,086
 Other current assets 173  47
 Licenses 485,380  483,059
 Property, plant and equipment 12,728  9,450
 Other assets and deferred charges 70  153
 Total assets$502,466 $504,795
       
Liabilities     
 Current liabilities$227 $957
 Deferred liabilities and credits 1,566  
 Total liabilities$1,793 $957