XML 95 R88.htm IDEA: XBRL DOCUMENT v3.20.1
Commitments and Contingencies - Summary of Warranty Accrual Included in Accrued Liabilities (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 27, 2020
Mar. 29, 2019
Commitments and Contingencies Disclosure [Abstract]    
Balance at beginning of period $ 4,314 $ 4,869
Accrual for current period warranties 656 1,403
Warranty costs incurred (1,226) (1,685)
Balance at end of period $ 3,744 $ 4,587