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Product Warranty (Tables)
 6 Months Ended
Oct. 01, 2016
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
 
Two fiscal quarters ended
(In thousands)
October 1, 2016
 
September 26, 2015
 
October 1, 2016
 
September 26, 2015
Product warranty accrual, beginning
$
5,947

 
$
4,021

 
$
5,734

 
$
3,342

Warranty charges incurred, net
(1,263
)
 
(2,063
)
 
(3,314
)
 
(3,547
)
Provision for warranty charges
837

 
2,493

 
3,101

 
4,656

Product warranty accrual, ending
$
5,521

 
$
4,451

 
$
5,521

 
$
4,451