Geographic Information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 03, 2021	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Jan. 03, 2021	Dec. 29, 2019	Dec. 30, 2018
Revenues from External Customers and Long-Lived Assets
Revenues	$ 474,317	$ 452,242	$ 402,306	$ 404,960	$ 427,191	$ 437,880	$ 435,348	$ 408,583	$ 1,733,825	$ 1,709,002	$ 1,589,936
Properties	915,889				977,000				915,889	977,000	1,023,267
U.S.
Revenues from External Customers and Long-Lived Assets
Revenues									1,635,696	1,606,619	1,495,639
Properties	879,806				941,607				879,806	941,607	990,992
International
Revenues from External Customers and Long-Lived Assets
Revenues									98,129	102,383	94,297
Properties	$ 36,083				$ 35,393				$ 36,083	$ 35,393	$ 32,275