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Product Warranty (Tables)
 9 Months Ended
Dec. 30, 2017
Product Warranties Disclosures [Abstract]  
Reconciliation of the Change in Aggregate Accrual for Product Warranty
The following is a reconciliation of the changes in the aggregate product warranty accrual:
 
Fiscal quarter ended
 
Three fiscal quarters ended
(In thousands)
Dec 30, 2017
 
Dec 31, 2016
 
Dec 30, 2017
 
Dec 31, 2016
Product warranty accrual, beginning
$
7,156

 
$
5,521

 
$
5,474

 
$
5,734

Warranty charges incurred, net
(3,273
)
 
(1,674
)
 
(8,384
)
 
(4,988
)
Provision for warranty charges
5,067

 
1,064

 
11,860

 
4,165

Product warranty accrual, ending
$
8,950

 
$
4,911

 
$
8,950

 
$
4,911