Leases - Additional Information (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 26, 2019 USD ($) leaseback_arrangement	Dec. 31, 2019 USD ($) leaseback_arrangement property	Jan. 01, 2019 USD ($)	Jan. 02, 2018 USD ($)	Jun. 18, 2019 leaseback_arrangement	Jan. 02, 2019 USD ($)
Operating Leased Assets [Line Items]
Operating Lease, Rent Expense, Closure Charges	$ 1,400
Operating Lease, Payments		$ 33,009
Operating Lease, Weighted Average Discount Rate, Percent		6.61%
Operating Lease, Weighted Average Remaining Lease Term		12 years 7 months 6 days
Operating Lease, Right-of-Use Asset		$ 258,278	$ 0			$ 218,855
Operating Lease, Cost		38,816
Finance Lease, Right-of-Use Asset, Amortization		451
Finance Lease, Interest Expense		95
Short-term Lease, Cost		421
Variable Lease, Cost		1,769
Leases, Deferred Rent Liability			16,600
Unfavorable lease liabilities, net		0	11,975
Unfavorable leases, accumulated amortization			7,200
Sublease Income		$ 4,448
Sublease contingent rental income				$ 100
Net proceeds from sale-leaseback arrangements			9,900
Lease agreement term (in years)		50 years
Sale Leaseback Transaction, Number of Arrangements | leaseback_arrangement	2	3			1
Sale Leaseback Transaction, Description of Accounting for Leaseback		12.7
Gain on sale of company-operated restaurants			200
Sale Leaseback Transaction, Deferred Gain, Net				$ 300
Lease, Cost		$ 37,104
Operating Lease, Liability, Current		17,848	0			17,303
Operating Lease, Liability		257,361	0
Operating Lease, Liability		275,209	0			$ 213,313
Finance Lease, Right-Of-Use Asset, Gross		871	3,370
Finance Lease, Right-Of-Use Asset, Accumulated Depreciation		(334)	(2,193)
Finance Lease, Right-of-Use Asset		537	1,177
Finance Lease, Liability, Current		162	510
Finance Lease, Liability, Noncurrent		412	757
Finance Lease, Liability		$ 574	$ 1,267
Finance Lease, Weighted Average Remaining Lease Term		4 years
Finance Lease, Interest Payment on Liability		$ 95
Finance Lease, Principal Payments		$ 489
Number of Stores | property		57
Finance Lease, Weighted Average Discount Rate, Percent		10.36%
Costa Mesa [Member]
Operating Leased Assets [Line Items]
Lease agreement term (in years)				20 years
Las Vegas [Member]
Operating Leased Assets [Line Items]
Lease agreement term (in years)				20 years
Property Lease Guarantee
Operating Leased Assets [Line Items]
Guarantor obligations, maximum exposure, lease payments		$ 1,600
Guarantor Obligations, Current Carrying Value		$ 100