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Equity Method Investments (Details)
3 Months Ended
Mar. 31, 2019
USD ($)
investment
Mar. 31, 2018
USD ($)
Dec. 31, 2018
USD ($)
Schedule of Equity Method Investments [Line Items]      
Number of investments accounted for under the equity method | investment 2    
Equity in net losses of investments $ 0 $ 331,000  
SUPERNAP International      
Schedule of Equity Method Investments [Line Items]      
Ownership interest in equity method investments 50.00%    
Carrying value of equity method investments $ 0    
Equity in net losses of investments   $ 300,000  
Planet3, Inc. [Member]      
Schedule of Equity Method Investments [Line Items]      
Ownership interest in equity method investments 45.00%    
Equity Method Investee [Member] | SUPERNAP International      
Schedule of Equity Method Investments [Line Items]      
Reimbursable expenses due from related parties included in accounts receivable $ 300,000   $ 400,000