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Leases - Maturity (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Jan. 01, 2019
Leases [Abstract]    
2020 $ 2,295  
2021 2,108  
2022 1,852  
2023 1,804  
2024 1,798  
Thereafter 6,543  
Total lease payments 16,400  
Less interest (5,391)  
Total operating lease liabilities $ 11,009 $ 11,700