Quarterly report pursuant to Section 13 or 15(d)

Accrued Warranty Reserve (Details)

v3.8.0.1
Accrued Warranty Reserve (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Sep. 30, 2017
Maximum period of product warranties   24 months    
Provision for warranty expenses   $ 610 $ 6,462  
Balance of warranty provision   3,766    
Accrued Warranty Reserve        
Balance, beginning of the period   3,766    
Standard warranty provision   1,370    
Accrual related to reliability repair programs   (760)    
Deductions for warranty claims   (2,616)    
Balance, end of the period   $ 1,760    
C200        
Provision for warranty expenses $ 5,200      
Balance of warranty provision       $ 600