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COMMITMENTS AND CONTINGENCIES (Future minimum rental payments required) (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2019 $ 2,699
2020 2,682
2021 2,146
2022 2,076
2023 1,564
Thereafter (and through 2035) 4,981
Total minimum lease payments $ 16,148