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Operating Leases - Summary Maturities of Lease Liabilities and Present Value Discount (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 01, 2019
Leases [Abstract]    
2019 $ 4,309  
2020 16,543  
2021 15,846  
2022 15,449  
2023 13,903  
Thereafter 102,110  
Total 168,160  
Present value discount (37,083)  
Lease liability $ 131,077 $ 130,700