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NOTES PAYABLE AND CREDIT FACILITY (Details)
12 Months Ended
May 18, 2020
USD ($)
Mar. 31, 2021
USD ($)
Component
Mar. 31, 2020
USD ($)
Credit Facility [Abstract]      
Maximum borrowing capacity under credit facility   $ 275,000,000  
Notes Payable [Member] | Recourse [Member]      
Notes Payable [Abstract]      
Long-term debt   $ 18,100,000 $ 2,300
Weighted average interest rate of notes   3.50% 2.55%
Notes Payable [Member] | Non-recourse [Member]      
Notes Payable [Abstract]      
Long-term debt   $ 56,100,000 $ 35,500,000
Weighted average interest rate of notes   3.35% 3.84%
WFCDF [Member]      
Credit Facility [Abstract]      
Number of components under credit facility | Component   2  
Maximum borrowing capacity under credit facility $ 275,000,000    
Guarantor obligations for credit facility, maximum   $ 10,500,000  
Restricted net assets   $ 0  
Period of notice required to terminate credit facility at quarter end   45 days  
Period of notice required to terminate credit facility at year end   90 days  
WFCDF [Member] | Minimum [Member]      
Credit Facility [Abstract]      
Period of temporary increase of aggregate limit on credit facility 30 days    
WFCDF [Member] | Maximum [Member]      
Credit Facility [Abstract]      
Aggregate period of temporary increase of aggregate limit on credit facility in a calendar year 150 days    
WFCDF [Member] | Floor Plan Component [Member]      
Credit Facility [Abstract]      
Amount outstanding under credit facility   $ 98,700,000 $ 127,400,000
WFCDF [Member] | Account Receivable Component [Member]      
Credit Facility [Abstract]      
Amount outstanding under credit facility   0 $ 35,000,000
Maximum borrowing capacity under credit facility $ 100,000,000 $ 100,000,000  
Basis spread on reference rate 2.00%    
WFCDF [Member] | Account Receivable Component [Member] | LIBOR [Member]      
Credit Facility [Abstract]      
Debt instrument term of variable rate   1 month  
Basis spread on reference rate 0.75%    
Election under WFCDF [Member]      
Credit Facility [Abstract]      
Maximum borrowing capacity under credit facility $ 350,000,000