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Restricted Cash and Restricted Cash Equivalents (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Restricted Cash and Cash Equivalents Items [Line Items]    
Total restricted cash $ 10,455 $ 475
Customer Deposit [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total restricted cash 3,204  
Restricted Cash To Collateralize Standby Letters Of Credit [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total restricted cash 3,396  
Restricted Cash Equivalents To Collateralize Standby Letters Of Credit [Member]    
Restricted Cash and Cash Equivalents Items [Line Items]    
Total restricted cash $ 3,855 $ 475