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Schedule of Debt Maturities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Debt Instrument [Line Items]    
Total long-term debt $ 2,145,883 $ 1,657,568
2017 Credit Agreement    
Debt Instrument [Line Items]    
2020 7,500  
2021 7,500  
2022 7,500  
2023 7,500  
2024 699,375  
2025 and beyond 0  
Total long-term debt $ 729,375