v3.19.1
LEASES (Schedule of Lease-related Assets and Liabilities) (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Assets    
Operating lease assets, net of lease incentive obligation $ 30,839
Finance lease assets 2,905  
Total lease assets 33,744  
Liabilities    
Operating and finance leases short term 8,808  
Operating leases long term 24,790  
Finance leases long term 2,045  
Total lease liabilities $ 35,643  
Operating leases 5 years 29 days  
Finance leases 8 years 8 months 2 days  
Operating leases 1.56%  
Finance leases 2.87%