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Balance sheet Detail Information - Additional Information (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Sep. 30, 2019
Balance Sheet Detail Information [Line Items]    
Inventories, net $ 64,525 $ 39,243
Accrued liabilities 14,822 $ 12,984
ApplianceSmart Inc    
Balance Sheet Detail Information [Line Items]    
Inventories, net 381  
Debtor in Possession Assets | ApplianceSmart Inc    
Balance Sheet Detail Information [Line Items]    
Inventories, net 381  
Debtor in Possession Liabilities | ApplianceSmart Inc    
Balance Sheet Detail Information [Line Items]    
Accrued liabilities $ 2,990