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Debt - Future receivables agreement (Details)
$ in Thousands
3 Months Ended
Dec. 31, 2020
USD ($)
Feb. 11, 2020
USD ($)
Mar. 31, 2021
USD ($)
Dec. 02, 2020
Nov. 02, 2020
USD ($)
installment
Dec. 31, 2019
USD ($)
Dec. 19, 2019
USD ($)
Debt Instrument [Line Items]              
Amount borrowed             $ 3,000
Long-term Debt $ 47,983   $ 50,104     $ 49,461  
Interest rate (stated)             3.00%
Future Receivables Agreement [Member]              
Debt Instrument [Line Items]              
Amount borrowed   $ 2,000          
Percentage of receivable agreed to be sold   10.00%          
Repayments Of Debt, Principal Amount   $ 2,000          
Repayments Of Debt, Interest Amount   700          
Long-term Debt 0            
Moving Services Company [Member]              
Debt Instrument [Line Items]              
Repayments Of Debt, Principal Amount 150   150        
Long-term Debt $ 617   $ 483        
Interest rate (stated)       0.38%      
Debt Instrument, Annual Principal Payment         $ 750    
Debt Instrument, Annual Principal Payment, Number of Installments | installment         5    
Minimum | Future Receivables Agreement [Member]              
Debt Instrument [Line Items]              
Accounts Receivable Agreed To Be Sold   2,300          
Maximum | Future Receivables Agreement [Member]              
Debt Instrument [Line Items]              
Accounts Receivable Agreed To Be Sold   $ 2,700