XML 21 R69.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Contingent Consideration - Reconciliation of Change in Fair Value Measurement of Contingent Consideration Liability (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Business Combinations [Abstract]    
Beginning balance $ 223 $ 362
Changes in fair value 7 (139)
Cash payments made $ (230)  
Ending balance   $ 223