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Acquisitions - Narrative (Detail)
$ in Thousands, € in Millions
3 Months Ended
Mar. 02, 2020
USD ($)
Jan. 08, 2020
USD ($)
Apr. 18, 2019
EUR (€)
Apr. 18, 2019
USD ($)
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Business Acquisition [Line Items]            
Cash paid to accelerate vesting         $ 80,566 $ 49,023
Transaction costs for acquisitions         11,530 $ 2,471
Packet Host, Inc.            
Business Acquisition [Line Items]            
Consideration transferred $ 290,300          
Cash paid to accelerate vesting         16,100  
Value of equity issued $ 30,200          
Vesting period of equity issued 3 years          
Packet Host, Inc. | Trade names | Measurement input, royalty rate            
Business Acquisition [Line Items]            
Measurement input 0.010          
Packet Host, Inc. | Trade names | Measurement input, discount rate            
Business Acquisition [Line Items]            
Measurement input 0.080          
Packet Host, Inc. | Customer relationships | Measurement input, discount rate            
Business Acquisition [Line Items]            
Measurement input 0.080          
Axtel            
Business Acquisition [Line Items]            
Consideration transferred   $ 189,000        
Cash consideration for acquisition   175,000        
Value added taxes   $ 14,000        
Axtel | Customer relationships | Measurement input, discount rate            
Business Acquisition [Line Items]            
Measurement input   0.133        
Packet and Axtel Acquisitions            
Business Acquisition [Line Items]            
Transaction costs for acquisitions         9,600  
Revenues from acquisitions included in results of operations         8,100  
Net loss of acquisitions included in earnings         $ 13,600  
Switch Datacenters' AMS1            
Business Acquisition [Line Items]            
Cash consideration for acquisition     € 30.6 $ 34,300