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Acquisition - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 07, 2021
Jun. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Business Acquisition [Line Items]        
Aggregate principal amount of debt issued   $ 1,500,000 $ 1,500,000 $ 1,000,000
Senior Unsecured Notes Due 2029 | Senior Notes        
Business Acquisition [Line Items]        
Aggregate principal amount of debt issued   $ 500,000 $ 500,000 $ 0
Interest rate   4.125% 4.125%  
Data Foundry Acquisition        
Business Acquisition [Line Items]        
Acquisition-related costs   $ 4,300 $ 4,400  
Acquisition revenue   3,300 3,300  
Acquisition net income   $ 200 $ 200  
Data Foundry Acquisition | Subsequent Event        
Business Acquisition [Line Items]        
Cash consideration paid for acquisition $ 415,600      
Considerations to be paid for acquisition upon finalization of closing conditions 6,500      
Cash, cash equivalents and restricted cash acquired $ 4,600