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Property and Equipment, Net (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Property and Equipment, Net (Details) [Line Items]        
Sale lease back transaction building $ 12,513   $ 12,513  
Depreciation expense 1,395 $ 648 4,780 $ 2,043
Construction in progress     19,773  
Under Financing Lease 1 [Member]        
Property and Equipment, Net (Details) [Line Items]        
Sale lease back transaction lease hold improvement 70,026   55,273  
Under Financing Lease 2 [Member]        
Property and Equipment, Net (Details) [Line Items]        
Sale lease back transaction accumulated depreciation $ 5,258   $ 2,624