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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Cash and cash equivalents $ 42,250 $ 51,179 $ 37,579  
Restricted cash 30,114 32,082    
Cash and cash equivalents, and restricted cash 72,364 $ 83,261 82,181 $ 106,565
Held In Escrow [Member]        
Restricted cash 15,598   29,538  
Certificates of Deposit [Member]        
Restricted cash 2,853   8,501  
Held with Trustee [Member]        
Restricted cash $ 11,663   $ 6,563