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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Cash, Cash Equivalents, and Restricted Cash (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Restricted Cash and Cash Equivalents Items [Line Items]      
Restricted cash $ 7,358 $ 6,918 $ 19,538
Real Estate Deposits for Property Acquisition      
Restricted Cash and Cash Equivalents Items [Line Items]      
Restricted cash 5,000    
Escrow Deposits      
Restricted Cash and Cash Equivalents Items [Line Items]      
Restricted cash $ 2,400