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Debt - Schedule of Maturities of Long-term Debt (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Debt Disclosure [Abstract]      
2020   $ 15,000  
2021   15,000  
2022   15,000  
2023   15,000  
2024   298,500  
Total debt $ 407,188 $ 358,500 $ 232,625