Revenue - Advertising Revenues (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 27, 2022
Disaggregation of Revenue [Line Items]
Total advertising	$ 560,739	$ 537,425
Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	100.00%	100.00%
Advertising
Disaggregation of Revenue [Line Items]
Total advertising	$ 106,241	$ 116,270
Digital | Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	57.70%	57.60%
Digital | Advertising
Disaggregation of Revenue [Line Items]
Total advertising	$ 61,271	$ 67,014
Print | Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	42.30%	42.40%
Print | Advertising
Disaggregation of Revenue [Line Items]
Total advertising	$ 44,970	$ 49,256