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Debt - Convertible Notes - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended
May 31, 2017
Jun. 30, 2015
Jun. 30, 2020
2017 Convertible Notes [Member]      
Debt Instrument [Line Items]      
Convertible notes aggregate principal amount $ 289,000   $ 289,000
Convertible notes, interest rate 1.875%    
Convertible notes, date of maturity Jun. 01, 2024    
2015 Convertible Notes [Member]      
Debt Instrument [Line Items]      
Convertible notes aggregate principal amount   $ 224,500 $ 224,500
Convertible notes, interest rate   2.25%  
Convertible notes, date of maturity   Jun. 01, 2022