LEASES (Narrative) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Existence of material residual value guarantees	false
Existence of material restrictive covenants	There were no lease agreements that contained material restrictive covenants
Existance of lease agreements signed with related parties	There were no lease agreements signed with related parties
Commitments related to operating lease agreements that have not yet commenced	$ 65,266
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 year
Lease term of lease agreements that have not yet commenced	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	11 years 10 months 24 days
Lease term of lease agreements that have not yet commenced	11 years 7 months 6 days