Segment Information - Schedule of Segment Reporting Information, by Segment (Details)	3 Months Ended
	Apr. 01, 2018 USD ($) entity	Mar. 26, 2017 USD ($)	Jan. 02, 2018 USD ($)	Dec. 31, 2017 USD ($)
Segment Information
Reportable segments, number | entity	5
Revenues	$ 427,369,000	$ 449,266,000
Income (loss) before income taxes	22,362,000	41,871,000
Accumulated depreciation and amortization	(412,458,000)
Net property and equipment	229,576,000		$ 234,331,000	$ 234,331,000
Domestic Company-owned restaurants
Segment Information
Revenues	190,242,000	206,896,000
North America commissary
Segment Information
Revenues	161,713,000	171,340,000
North America franchising
Segment Information
Revenues	24,806,000	27,607,000
International
Segment Information
Revenues	30,114,000	25,622,000
Other segment
Segment Information
Revenues	20,494,000	17,801,000
Operating segments
Segment Information
Revenues	427,369,000	449,266,000
Operating segments | Domestic Company-owned restaurants
Segment Information
Revenues	190,242,000	206,896,000
Income (loss) before income taxes	7,229,000	15,487,000
Property and equipment, gross	232,662,000
Operating segments | North America commissary
Segment Information
Revenues	161,713,000	171,340,000
Income (loss) before income taxes	8,610,000	12,244,000
Property and equipment, gross	137,002,000
Transfer of expenses between unallocated corporate and segments	2,300,000
Operating segments | North America franchising
Segment Information
Revenues	24,806,000	27,607,000
Income (loss) before income taxes	22,359,000	24,875,000
Operating segments | International
Segment Information
Revenues	35,532,000	28,518,000
Income (loss) before income taxes	3,537,000	4,344,000
Property and equipment, gross	17,784,000
Operating segments | Other segment
Segment Information
Revenues	15,076,000	14,905,000
Income (loss) before income taxes	(909,000)	460,000
Property and equipment, gross	60,993,000
Transfer of expenses between unallocated corporate and segments	900,000
Elimination
Segment Information
Revenues	(65,037,000)	(67,589,000)
Income (loss) before income taxes	(333,000)	842,000
Elimination | North America commissary
Segment Information
Revenues	(55,874,000)	(61,736,000)
Elimination | North America franchising
Segment Information
Revenues	(1,019,000)	(764,000)
Elimination | International
Segment Information
Revenues	(70,000)	(63,000)
Elimination | Other segment
Segment Information
Revenues	(8,074,000)	(5,026,000)
Unallocated corporate
Segment Information
Income (loss) before income taxes	(18,131,000)	$ (16,381,000)
Property and equipment, gross	193,593,000
Transfer of expenses between unallocated corporate and segments	$ (3,800,000)