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Warranty (Tables)
 9 Months Ended
Sep. 28, 2019
Product Warranties Disclosures [Abstract]  
Reconciliation of Changes in Warranty Liability

Changes in our warranty liability were as follows (in thousands):
 
Nine Months Ended
 
September 28,
2019
 
September 29,
2018
Balance at beginning of period
$
2,102

 
$
3,662

Accruals
2,742

 
3,168

Settlements
(3,051
)
 
(4,373
)
Balance at end of period
$
1,793

 
$
2,457