Revenue - Advertising Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,074,877	$ 1,783,639	$ 1,812,184
Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	100.00%	100.00%	100.00%
Advertising
Disaggregation of Revenue [Line Items]
Total revenues	$ 497,536	$ 392,420	$ 530,678
Digital | Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	62.00%	58.30%	49.10%
Digital | Advertising
Disaggregation of Revenue [Line Items]
Total revenues	$ 308,616	$ 228,594	$ 260,454
Print | Revenue from Contract with Customer, Advertising Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	38.00%	41.70%	50.90%
Print | Advertising
Disaggregation of Revenue [Line Items]
Total revenues	$ 188,920	$ 163,826	$ 270,224