Revenue - Subscription, Advertising, and Other 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
Product and service benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	100.00%	100.00%	100.00%
Subscription
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,362,115	$ 1,195,368	$ 1,083,851
Subscription | Product and service benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	65.60%	67.00%	59.80%
Advertising
Disaggregation of Revenue [Line Items]
Total revenues	$ 497,536	$ 392,420	$ 530,678
Advertising | Product and service benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	24.00%	22.00%	29.30%
Other
Disaggregation of Revenue [Line Items]
Total revenues	$ 215,226	$ 195,851	$ 197,655
Other | Product and service benchmark | Product concentration risk
Disaggregation of Revenue [Line Items]
As % of total	10.30%	11.00%	10.90%
Real Estate
Disaggregation of Revenue [Line Items]
Revenue not from contract with customer	$ 27,000	$ 29,000	$ 31,000