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SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Jan. 01, 2021
Operating lease right-of-use asset $ 17,042  
Lease liabilities $ 17,077  
ASU 2016-02    
Operating lease right-of-use asset   $ 19,280
Lease liabilities   19,566
Cumulative effect | ASU 2016-02    
Operating lease right-of-use asset   19,280
Lease liabilities   $ 19,566