LEASES (Supplemental Balance Sheet Information) (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Operating leases
Operating right-of-use assets (long-term)	$ 68,810
Operating lease liabilities (current)	18,273
Operating lease liabilities (long-term)	54,040
Total operating lease liabilities	$ 72,313
Weighted average remaining lease term (in years)	5 years 4 months 24 days
Weighted average discount rate	3.93%
Land and Structures
Operating leases
Operating right-of-use assets (long-term)	$ 67,029
Operating lease liabilities (current)	17,250
Operating lease liabilities (long-term)	53,293
Total operating lease liabilities	70,543
Equipment and Others
Operating leases
Operating right-of-use assets (long-term)	1,781
Operating lease liabilities (current)	1,023
Operating lease liabilities (long-term)	747
Total operating lease liabilities	$ 1,770