Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Principles - Property and Equipment (Details)

v3.20.4
Summary of Significant Accounting Principles - Property and Equipment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Property and equipment $ 1,108,618 $ 1,509  
Accumulated depreciation (10,106) (977)  
Property and equipment, net 1,098,512 532  
Depreciation expense 9,300 92 $ 200
Capitalized interest costs 145 0  
Land      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 16,369    
Building      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 25 years    
Property and equipment, gross $ 93,947    
Telephony transmission equipment and distribution facilities      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 666,412    
Telephony transmission equipment and distribution facilities | Minimum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 5 years    
Telephony transmission equipment and distribution facilities | Maximum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 20 years    
Cable transmission equipment and distribution facilities      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 83,978    
Cable transmission equipment and distribution facilities | Minimum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 5 years    
Cable transmission equipment and distribution facilities | Maximum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 30 years    
Support equipment and systems      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 85,458 1,341  
Support equipment and systems | Minimum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 3 years    
Support equipment and systems | Maximum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 20 years    
Fiber optic cable systems      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 68,307    
Fiber optic cable systems | Minimum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 15 years    
Fiber optic cable systems | Maximum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 25 years    
Other      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 33,444 $ 168  
Other | Minimum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 2 years    
Other | Maximum      
Property, Plant and Equipment [Line Items]      
Remaining useful lives of property and equipment 20 years    
Construction in progress      
Property, Plant and Equipment [Line Items]      
Property and equipment, gross $ 60,703