Other Assets (Details) - USD ($) $ in Thousands	Jun. 27, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Cloud computing arrangements	$ 9,747	$ 6,374
Customer displays	6,325	11,213
Deposits	5,975	6,440
Long-term notes receivable	4,547	4,614
Overfunded pension benefit obligation	2,063	2,015
Other prepaid expenses	766	1,896
Debt issuance costs on unused portion of revolver facility	1,227	1,472
Other long-term accounts receivable	553	563
Other long-term assets	411	375
Total other assets	$ 31,614	$ 34,962