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Intangible Assets (Tables)
9 Months Ended
Sep. 30, 2014
Licenses  
Licenses
Licenses  
     
(Dollars in thousands)  
Balance December 31, 2013$ 1,401,126
 Acquisitions  41,707
 Transferred to Assets held for sale  (68,288)
 Exchanges, net  15,719
 Other  408
Balance September 30, 2014$ 1,390,672