Leases - Additional Information (Details) $ in Thousands	4 Months Ended		6 Months Ended		12 Months Ended
	Jan. 03, 2017 USD ($) property location	Dec. 29, 2015 USD ($) location	Dec. 29, 2015 USD ($)	Jun. 30, 2015 USD ($)	Jan. 03, 2017 USD ($) property location	Dec. 29, 2015 USD ($)	Dec. 30, 2014 USD ($)
Operating Leased Assets [Line Items]
Number of properties subleased | property	30				30
Number of underperforming locations | location	12
Number of Underperforming Restaurant Locations, Terminated | location					1
Net proceeds from sale-leaseback arrangements					$ 3,400
Leaseback arrangement term (in years)					35 years
Predecessor
Operating Leased Assets [Line Items]
Sublease rent income				$ 1,100			$ 2,087
Sublease contingent rental income						$ 300	500
Successor [Member]
Operating Leased Assets [Line Items]
Deferred rent liability	$ 18,700	$ 20,400	$ 20,400		$ 18,700	20,400
Unfavorable lease liabilities, net	17,072	19,685	19,685		17,072	19,685
Unfavorable leases, accumulated amortization	3,900	$ 1,300	1,300		3,900	$ 1,300
Sublease rent income			1,100		2,121
Sublease contingent rental income			300		100
Total sublease amounts receivable	$ 34,000				$ 34,000
Number of Underperforming Restaurant Locations, Subleased | location					11
Number of underperforming locations | location		12
Sale of Land and Building in Victorville
Operating Leased Assets [Line Items]
Leaseback arrangement term (in years)					1 year
Lessee Leasing Arrangements, Operating Leases, Termination Notice					60 days
Sale of Land and Building in Bakersfield
Operating Leased Assets [Line Items]
Leaseback arrangement term (in years)					20 years
Capital Lease Obligations | Successor [Member]
Operating Leased Assets [Line Items]
Interest rate on capital lease	8.00%				8.00%
Occupancy and Other - Franchise Subleases | Predecessor
Operating Leased Assets [Line Items]
Sublease rent income				$ 1,100			$ 2,100
Occupancy and Other - Franchise Subleases | Successor [Member]
Operating Leased Assets [Line Items]
Sublease rent income			$ 1,100		$ 2,200