Noncontrolling Interests - Income Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 27, 2020	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018
Noncontrolling Interests
Noncontrolling interests									$ 2,682	$ 791	$ 1,599
Net income attributable to the Company	$ 13,167	$ 15,708	$ 20,614	$ 8,443	$ (2,142)	$ 385	$ 8,354	$ (1,731)	57,932	4,866	2,474
Joint ventures
Noncontrolling Interests
Papa John's International, Inc.									5,654	2,560	5,794
Noncontrolling interests									2,682	791	1,599
Net income attributable to the Company									$ 8,336	$ 3,351	$ 7,393