Revenue - Digital-only Subscription Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 26, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,426,152	$ 2,308,321	$ 2,074,877
Subscription
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,656,153	$ 1,552,362	$ 1,362,115
Subscription | Revenue from Contract with Customer, Subscription Revenue Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	100.00%	100.00%	100.00%
Subscription | Digital
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,099,439	$ 978,574	$ 773,882
Subscription | Digital | Revenue from Contract with Customer, Subscription Revenue Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	66.40%	63.00%	56.80%
Subscription | Print
Disaggregation of Revenue [Line Items]
Total revenues	$ 556,714	$ 573,788	$ 588,233
Subscription | Print | Revenue from Contract with Customer, Subscription Revenue Benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	33.60%	37.00%	43.20%