LEASES (Supplemental Balance Sheet Information) (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Operating leases
Operating right-of-use assets (long-term)	$ 67,404
Operating lease liabilities (current)	18,492
Operating lease liabilities (long-term)	52,782
Total operating lease liabilities	$ 71,274
Weighted average remaining lease term (in years)	5 years 4 months 24 days
Weighted average discount rate	3.88%
Land and Structures
Operating leases
Operating right-of-use assets (long-term)	$ 65,906
Operating lease liabilities (current)	17,498
Operating lease liabilities (long-term)	52,285
Total operating lease liabilities	69,783
Equipment and Others
Operating leases
Operating right-of-use assets (long-term)	1,498
Operating lease liabilities (current)	994
Operating lease liabilities (long-term)	497
Total operating lease liabilities	$ 1,491