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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases
The following represents payments due by period for operating lease obligations as of December 31, 2018 (dollars in thousands):
Year Ending December 31:
 
2019
$
1,986

2020
2,037

2021
1,841

2022
1,680

2023
1,481

2024 and thereafter
4,364