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Related Party Transactions - Additional Information (Details) - USD ($)
3 Months Ended
Jun. 24, 2016
Jun. 15, 2016
Apr. 25, 2015
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Related Party Transaction [Line Items]            
Common stock, shares issued       155,276,000   155,139,000
Proceeds from disposition of common stock       $ (54,000)    
General and administrative expense       13,978,000 $ 5,189,000  
Operating expenses       22,125,000 4,707,000  
Payments related to tax withholding for share-based compensation       $ 1,690,000 $ 1,266,000  
Windstream            
Related Party Transaction [Line Items]            
Common shares withheld to satisfy minimum statutory tax-withholding obligations         91,412  
Payments related to tax withholding for share-based compensation         $ 1,300,000  
Windstream | Master Lease            
Related Party Transaction [Line Items]            
Leasing revenue         168,600,000  
Windstream | Transitional Service Agreement            
Related Party Transaction [Line Items]            
General and administrative expense         19,000  
Windstream | Common Stock            
Related Party Transaction [Line Items]            
Disposition of common stock in exchange for debt   14,700,000        
Windstream | Public Offering            
Related Party Transaction [Line Items]            
Common stock, shares issued 14,700,000          
Proceeds from disposition of common stock $ 0          
Windstream | Consumer CLEC Business | Wholesale Master Services Agreement            
Related Party Transaction [Line Items]            
Operating expenses         3,400,000  
Windstream | Consumer CLEC Business | Master Services Agreement            
Related Party Transaction [Line Items]            
Operating expenses         $ 400,000  
Spinoff | Windstream | Consumer CLEC Business            
Related Party Transaction [Line Items]            
Common stock, shares issued     149,800,000      
Common stock, ownership interest percentage     19.60%      
Spinoff | Windstream | Consumer CLEC Business | Share Distribution            
Related Party Transaction [Line Items]            
Percentage of stock distributed     80.40%