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Intangible Assets - Estimated Amortization Expense (Details) - USD ($)
$ in Thousands
1 Months Ended
Jul. 31, 2020
Jun. 30, 2020
Dec. 31, 2019
Estimated Amortization Expense      
2020 (remaining 6 months)   $ 3,942  
2021   7,885  
2022   7,885  
2023   7,885  
2024   7,885  
Thereafter   67,018  
Total   $ 102,500 $ 0
Subsequent event      
Finite-Lived Intangible Assets [Line Items]      
Estimated useful life of intangible asset 13 years