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PROPERTY AND EQUIPMENT, NET (Schedule of Property And Equipment, Net) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]      
Cost $ 78,823 $ 80,182  
Less - accumulated depreciation and amortization [1] (47,309) (48,274)  
Total property and equipment, net 31,514 31,908 $ 32,546
Operating equipment, amount subject to lease transactions 26,000 26,000  
Accumulated depreciation and amortization subject to lease transactions 10,400 10,400  
Operating Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Cost [2] 43,740 46,947  
Office Furniture, Equipment, And Computers [Member]      
Property, Plant and Equipment [Line Items]      
Cost 24,790 23,858  
Land [Member]      
Property, Plant and Equipment [Line Items]      
Cost 1,022 1,022  
Buildings [Member]      
Property, Plant and Equipment [Line Items]      
Cost 1,845 1,855  
Vehicles [Member]      
Property, Plant and Equipment [Line Items]      
Cost 3,810 3,412  
Leasehold Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Cost $ 3,616 $ 3,088  
[1] As at December 31, 2015 and 2014, an amount of US$ 10.4 million and US$ 10.4 million is subject to operating lease transactions, respectively.
[2] As December 31, 2015 and 2014, an amount of US$ 26 million and US$ 26 million is subject to operating lease transactions, respectively.