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Earnings Per Share - Additional Information (Details) - $ / shares
3 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]    
Preferred stock, par value $ 0.0001 $ 0.0001
Anti-dilutive securities excluded from the computation of diluted earnings per share 382,019  
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