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Warranties (Tables)
 6 Months Ended
Sep. 26, 2020
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 EndedSix Months Ended
September 26,
2020		September 28,
2019		September 26,
2020		September 28,
2019
Balance at beginning of period$18,538 $17,760 $18,678 $17,069 
Purchase accounting additions— 1,192 — 1,192 
Charged to costs and expenses6,232 6,765 12,579 14,586 
Payments and deductions(6,965)(7,154)(13,452)(14,284)
Balance at end of period$17,805 $18,563 $17,805 $18,563