XML 49 R39.htm IDEA: XBRL DOCUMENT v3.20.2
Nature of Operations and Summary of Significant Accounting Policies - Warranty Obligations (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 26, 2020
Sep. 28, 2019
Changes in the carrying amount of accrued warranty costs [Roll Forward]    
Balance at Beginning of Year $ 6,467 $ 5,726
Provision charged to expense 3,960 3,332
Usage (3,809) (2,778)
Acquisition 0 303
Currency translation 114 (175)
Balance at End of Period $ 6,732 $ 6,408