Annual report pursuant to Section 13 and 15(d)

Business and Summary of Significant Accounting Principles (Business Acquisition) (Details)

v2.4.0.8
Business and Summary of Significant Accounting Principles (Business Acquisition) (Details) (USD $)
In Thousands, unless otherwise specified
 0 Months Ended 12 Months Ended
Jul. 22, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Business Acquisition [Line Items]        
Purchase of business $ 100,000 $ 107,600 $ 1,874 $ 352
Assets acquired and liabilities assumed:        
Goodwill   219,041 77,294 74,883
ACS [Member]
        
Business Acquisition [Line Items]        
Purchase of business 100,000      
Fair value of the one-third ownership interest of AWN 267,642      
Total purchase price 367,642      
Assets acquired and liabilities assumed:        
Current assets 16,952      
Property and equipment, including construction in progress 82,473      
Goodwill 140,081      
Other assets 16,078      
Fair value of liabilities assumed (6,011)      
Total fair value of assets acquired and liabilities assumed 367,642      
ACS [Member] | Wireless Licenses [Member]
        
Assets acquired and liabilities assumed:        
Intangible assets 65,433      
ACS [Member] | Rights to Use Capacity [Member]
        
Assets acquired and liabilities assumed:        
Intangible assets $ 52,636