Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Business and Summary of Significant Accounting Principles (Depreciation) (Details)
 12 Months Ended
Dec. 31, 2016
Technology Equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 5 years
Technology Equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 20 years
Fiber optic cable systems | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 15 years
Fiber optic cable systems | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 25 years
Cable transmission equipment and distribution facilities | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 5 years
Cable transmission equipment and distribution facilities | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 30 years
Support equipment and systems | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 3 years
Support equipment and systems | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 20 years
Transportation Equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 5 years
Transportation Equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 13 years
Assets Held under Capital Leases | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 12 years
Assets Held under Capital Leases | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 20 years
Building  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 25 years
Customer premise equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 2 years
Customer premise equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 20 years
Studio equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 10 years
Studio equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 15 years