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Commitments and Contingencies (Tables)
6 Months Ended
Sep. 30, 2021
Commitments and Contingencies [Abstract]  
Changes in Warranty Return Accrual
The following summarizes the changes in the warranty return accrual:

 
 
Three Months Ended
September 30,
   
Six Months Ended
September 30,
 
 
 
2021
   
2020
   
2021
   
2020
 
Balance at beginning of period
 
$
20,010,000
   
$
22,192,000
   
$
21,093,000
   
$
18,300,000
 
Charged to expense
   
30,837,000
     
30,872,000
     
58,098,000
     
53,961,000
 
Amounts processed
   
(29,972,000
)
   
(30,565,000
)
   
(58,316,000
)
   
(49,762,000
)
Balance at end of period
 
$
20,875,000
   
$
22,499,000
   
$
20,875,000
   
$
22,499,000