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Product Warranties
 12 Months Ended
Sep. 27, 2019
Guarantees [Abstract]  
Product Warranties PRODUCT WARRANTIES
We establish a product warranty liability at the time of revenue recognition. Product warranties generally have terms of 12 months and cover nonconformance with specifications and defects in material or workmanship. For sales to distributors, our warranty generally begins when the product is resold by the distributor. The liability is based on estimated costs to fulfill customer product warranty obligations and utilizes historical product failure rates. Should actual warranty obligations differ from estimates, revisions to the warranty liability may be required.
Product warranty liability activity is as follows (in thousands):
 
 
 
Fiscal Years
 
 
 
2019
 
2018
 
2017
Balance — beginning of year
$
5,756

 
$
3,672

 
$
1,039

(Divested)/acquired
—

 
(49
)
 
952

Provisions/(expense)
(3,053
)
 
1,865

 
1,737

Direct charges/(payments)
570

 
268

 
(56
)
Balance — end of year
$
3,273

 
$
5,756

 
$
3,672