Revenue - Advertising Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 26, 2022	Jun. 30, 2023	Jun. 26, 2022
Disaggregation of Revenue [Line Items]
Total advertising	$ 590,853	$ 555,680	$ 1,151,592	$ 1,093,105
Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	100.00%	100.00%	100.00%	100.00%
Advertising
Disaggregation of Revenue [Line Items]
Total advertising	$ 117,770	$ 117,379	$ 224,011	$ 233,649
Digital | Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	62.70%	59.00%	60.30%	58.30%
Digital | Advertising
Disaggregation of Revenue [Line Items]
Total advertising	$ 73,804	$ 69,292	$ 135,075	$ 136,306
Print | Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	37.30%	41.00%	39.70%	41.70%
Print | Advertising
Disaggregation of Revenue [Line Items]
Total advertising	$ 43,966	$ 48,087	$ 88,936	$ 97,343