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SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($)
$ in Thousands
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Cash and cash equivalents $ 39,946   $ 28,163  
Restricted cash 28,158 $ 32,083    
Total cash, cash equivalents and restricted cash 68,104 $ 83,311 81,127 $ 106,615
Held In Escrow [Member]        
Restricted cash 14,031   34,690  
Certificates of Deposit [Member]        
Restricted cash 2,854   11,876  
Held with Trustee [Member]        
Restricted cash $ 11,273   $ 6,398