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Property, Plant and Equipment (Table)
12 Months Ended
Dec. 31, 2011
Disclosure Text Block  
Property, plant and equipment
 Useful Lives        
December 31,(Years) 2011 2010
(Dollars in thousands)         
Land N/A $30,807  $26,791 
Buildings 20  330,925   317,474 
Leasehold and land improvements 1-30  1,129,818   1,048,278 
Cell site equipment 6-25  2,874,397   2,676,878 
Switching equipment 1-8  1,113,780   991,934 
Office furniture and equipment 3-5  570,776   520,756 
Other operating assets and equipment 5-25  127,253   120,586 
System development 3-7  545,193   471,334 
Work in process N/A  285,500   166,506 
    7,008,449   6,340,537 
Accumulated depreciation and amortization   (4,218,147)  (3,766,015)
   $2,790,302  $2,574,522