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Variable Interest Entities VIEs (Tables)
12 Months Ended
Dec. 31, 2012
Variable Interest Entities VIEs  
Consolidated VIE assets and liabilities
December 31,2012 2011
(Dollars in thousands)     
Assets     
 Cash and cash equivalents$ 5,849 $ 12,086
 Other current assets  120   47
 Licenses  308,091   483,059
 Property, plant and equipment, net  16,443   9,450
 Other assets and deferred charges  887   153
 Total assets$ 331,390 $ 504,795
       
Liabilities     
 Current liabilities$ 1,013 $ 957
 Deferred liabilities and credits  3,024   -
 Total liabilities$ 4,037 $ 957