Annual report pursuant to Section 13 and 15(d)

Net Property and Equipment (PPE by Class) (Details)

v3.6.0.2
Net Property and Equipment (PPE by Class) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Property, Plant and Equipment [Line Items]    
Property and equipment $ 2,614,875 $ 2,384,530
Less accumulated depreciation 1,385,620 1,231,457
Less accumulated amortization on property and equipment under capital leases 67,337 58,692
Net property and equipment 1,161,918 1,094,381
Gross property and equipment under capital leases 112,495 112,495
Land and buildings    
Property, Plant and Equipment [Line Items]    
Property and equipment 114,966 108,145
Telephony transmission equipment and distribution facilities    
Property, Plant and Equipment [Line Items]    
Property and equipment 1,271,425 1,215,796
Cable transmission equipment and distribution facilities    
Property, Plant and Equipment [Line Items]    
Property and equipment 231,539 218,259
Studio equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment 15,456 15,171
Support equipment and systems    
Property, Plant and Equipment [Line Items]    
Property and equipment 290,209 251,302
Transportation equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment 23,674 17,398
Customer premise equipment    
Property, Plant and Equipment [Line Items]    
Property and equipment 158,513 155,971
Fiber optic cable systems    
Property, Plant and Equipment [Line Items]    
Property and equipment 351,460 309,217
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment $ 157,633 $ 93,271