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Leases - Schedule of Future Lease Payments (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Leases [Abstract]    
Remainder of 2019 $ 8,852  
2020 8,941  
2021 6,988  
2022 4,294  
2023 3,843  
After 2023 32,744  
Total lease payments 65,662  
Less: Interest 13,870  
Present value of operating lease liabilities 51,792  
Less: Current operating lease liabilities 9,830  
Noncurrent operating lease liabilities $ 41,962 $ 0