New Accounting Standards Adoption for Topic 606 Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017	Dec. 31, 2017	Jan. 01, 2017
New Accounting Pronouncements or Change in Accounting Principle
Accrued expenses and other current liabilities	$ 99,307		$ 111,624
Advertising funds restricted liabilities	100,646		62,602
Total current liabilities	250,106		227,162
Deferred income taxes	267,156		299,053
Deferred franchise fees	92,727		10,881
Total liabilities	3,646,841		3,523,735
Accumulated deficit	(233,700)		(163,289)
Accumulated other comprehensive loss	(52,125)	$ (60,755)	(46,198)	$ (63,241)
Total stockholders' equity	462,997	524,849	$ 573,203	$ 527,736
Franchise royalty revenue and fees	97,908	94,690
Advertising funds revenue	78,900	0
Total revenues	380,564	285,819
Advertising funds expense	78,900	0
Total costs and expenses	325,302	225,099
Operating profit	55,262	60,720
Income before income taxes	14,353	32,134
Benefit from income taxes	5,806	(9,793)
Net income	20,159	22,341
Deferred income tax	(9,799)	(938)
Other, net	2,729	1,420
Accrued expenses and other current liabilities	(20,443)	$ (21,180)
Revenue recognized during the period related to deferred franchise fees	2,688
Revenue recognition guidance
New Accounting Pronouncements or Change in Accounting Principle
Advertising funds restricted liabilities	(6,645)
Deferred income taxes	21,996
Deferred franchise fees	(85,561)
Adjustments for franchise fees | Revenue recognition guidance
New Accounting Pronouncements or Change in Accounting Principle
Accrued expenses and other current liabilities	(3,076)
Advertising funds restricted liabilities	0
Total current liabilities	(3,076)
Deferred income taxes	21,774
Deferred franchise fees	(81,482)
Total liabilities	(62,784)
Accumulated deficit	62,921
Accumulated other comprehensive loss	(137)
Total stockholders' equity	62,784
Franchise royalty revenue and fees	(866)
Advertising funds revenue	0
Total revenues	(866)
Advertising funds expense	0
Total costs and expenses	0
Operating profit	(866)
Income before income taxes	(866)
Benefit from income taxes	222
Net income	(644)
Deferred income tax	(222)
Other, net	(337)
Accrued expenses and other current liabilities	1,203
Adjustments for advertising funds | Revenue recognition guidance
New Accounting Pronouncements or Change in Accounting Principle
Accrued expenses and other current liabilities	0
Advertising funds restricted liabilities	(6,645)
Total current liabilities	(6,645)
Deferred income taxes	0
Deferred franchise fees	0
Total liabilities	(6,645)
Accumulated deficit	6,645
Accumulated other comprehensive loss	0
Total stockholders' equity	6,645
Franchise royalty revenue and fees	0
Advertising funds revenue	(78,900)
Total revenues	(78,900)
Advertising funds expense	(78,900)
Total costs and expenses	(78,900)
Operating profit	0
Income before income taxes	0
Benefit from income taxes	0
Net income	0
Deferred income tax	0
Other, net	0
Accrued expenses and other current liabilities	0
Balances without adoption | Revenue recognition guidance
New Accounting Pronouncements or Change in Accounting Principle
Accrued expenses and other current liabilities	96,231
Advertising funds restricted liabilities	94,001
Total current liabilities	240,385
Deferred income taxes	288,930
Deferred franchise fees	11,245
Total liabilities	3,577,412
Accumulated deficit	(164,134)
Accumulated other comprehensive loss	(52,262)
Total stockholders' equity	532,426
Franchise royalty revenue and fees	97,042
Advertising funds revenue	0
Total revenues	300,798
Advertising funds expense	0
Total costs and expenses	246,402
Operating profit	54,396
Income before income taxes	13,487
Benefit from income taxes	6,028
Net income	19,515
Deferred income tax	(10,021)
Other, net	2,392
Accrued expenses and other current liabilities	(19,240)
Revenue recognized during the period related to deferred franchise fees	$ 1,822