Related Party Transactions	9 Months Ended
	Sep. 26, 2020
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsSale of subsidiary – In May 2019, we sold Creative Media Development, Inc. “CMD”, a subsidiary, which was part of our North America segment, for $6.5 million, resulting in a gain of $2.8 million in the second quarter of 2019. A minority shareholder of the buying group also serves on our Board of Directors. Under the Stock Purchase Agreement for CMD, we agreed to use CMD for certain advertising services totaling $7.0 million between 2019 and 2023. As of September 26, 2020, the remaining balance is $1.9 million. At September 26, 2020, there is no amount due from the related party. This sale did not have a material impact on our results of operations.Acquired lease – In conjunction with our acquisition of VPI, we assumed operating leases on two buildings with a former shareholder of VPI and current employee. The leases are at market rates and resulted in an operating lease asset of $3.6 million as of the opening balance sheet. One of the leases was modified in August 2019, which increased the value by $0.6 million. At September 26, 2020, the operating lease asset is $3.6 million.