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Warranties (Tables)
 9 Months Ended
Dec. 27, 2014
Product Warranties Disclosures [Abstract]  
Activity in the liability for estimated warranties
Activity in the liability for estimated warranties was as follows (in thousands):
 
Three Months Ended
 
Nine Months Ended
 
December 27,
2014
 
December 28,
2013
 
December 27,
2014
 
December 28,
2013
Balance at beginning of period
$
9,393

 
$
8,670

 
$
9,262

 
$
8,202

Charged to costs and expenses
3,014

 
3,005

 
9,264

 
8,523

Payments and deductions
(2,991
)
 
(2,800
)
 
(9,110
)
 
(7,850
)
Balance at end of period
$
9,416

 
$
8,875

 
$
9,416

 
$
8,875