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Leases - Schedule of Maturities of Lease Payments (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Leases [Abstract]    
2019 $ 30,178  
2020 40,151  
2021 35,049  
2022 31,503  
2023 29,766  
After 2024 134,299  
Total lease payments 300,946  
Less interest (87,976)  
Present value of lease liabilities $ 212,970 $ 0