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Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Thousands, shares in Millions
1 Months Ended 12 Months Ended
Feb. 28, 2021
Jan. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Feb. 01, 2021
Subsequent Event [Line Items]            
Dividends declared (in dollars per share)     $ 0.159 $ 0.118 $ 0.059  
Dividends declared     $ 17,883 $ 9,414 $ 2,961  
Subsequent Event            
Subsequent Event [Line Items]            
Dividends declared $ 6,400          
SUPERNAP Thailand | SUPERNAP International | Subsequent Event            
Subsequent Event [Line Items]            
Ownership interest acquired           30.00%
Payments to acquire equity investment 2,200          
SUPERNAP International | Subsequent Event            
Subsequent Event [Line Items]            
Percentage of ownership interest sold           50.00%
Amount of ownership interest sold $ 4,900          
Switch, Ltd. | Subsequent Event            
Subsequent Event [Line Items]            
Cash distribution (in dollars per share) $ 0.05          
Estimated cash distribution $ 12,100          
Class A Common Stock            
Subsequent Event [Line Items]            
Issuance of common stock (in shares)     28.3 34.0 19.1  
Class A Common Stock | Subsequent Event            
Subsequent Event [Line Items]            
Issuance of common stock (in shares) 0.2 7.5        
Dividends declared (in dollars per share) $ 0.05