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CONTINGENT LIABILITIES (Commitments) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]      
Minimum future rentals under operating leases - 2019 $ 6.1    
Minimum future rentals under operating leases - 2020 3.2    
Minimum future rentals under operating leases - 2021 1.5    
Minimum future rentals under operating leases - 2022 1.0    
Minimum future rentals under operating leases - 2023 1.0    
Minimum future rentals under operating leases - 2024 2.1    
Leasing fees $ 3.1 $ 3.2 $ 2.6