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Earnings Per Share - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jan. 04, 2019
May 02, 2016
Jun. 30, 2018
Jun. 30, 2018
Jun. 30, 2019
Dec. 31, 2018
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]            
Preferred stock, par value         $ 0.0001 $ 0.0001
Non-Participating Securities            
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]            
Anti-dilutive securities excluded from the computation of diluted earnings per share     563,492      
PEG Bandwidth, LLC | Series A Convertible Preferred Stock            
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]            
Percentage of dividend rate on convertible preferred stock   3.00%        
Preferred stock, par value   $ 0.0001        
Hunt Telecommunications, LLC            
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]            
Contingent consideration settled through issuance of common shares 645,385          
Contingent consideration settled through issuance of common shares, fair value $ 11.2          
Hunt Telecommunications, LLC | Common Stock            
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]            
Anti-dilutive securities excluded from the computation of diluted earnings per share       619,581