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Commitments and Contingencies (Tables)
 3 Months Ended
Mar. 28, 2020
Commitments and Contingencies Disclosure [Abstract]  
Activity Related to the Warranty Accrual
Activity related to the warranty accrual was as follows (in thousands):
 
Three Months Ended
 
March 28, 2020
 
March 30, 2019
Balance at beginning of period
$
13,856

 
$
11,964

Provision
4,475

 
2,652

Warranty usage
(4,333
)
 
(2,988
)
Balance at end of period
$
13,998

 
$
11,628