Leases (Tables)
 12 Months Ended
Dec. 27, 2015
Leases [Abstract]  
Future Minimum Rental Commitments
At December 27, 2015, the future minimum rental commitments under non-cancellable operating leases, for opened restaurants and those under development, including option periods that are reasonably assured of renewal are as follows:
 
Related Party
 
Unrelated Parties
 
Total
Fiscal year ending:
 
 
 
 
 
2016
$
1,921

 
$
15,339

 
$
17,260

2017
1,309

 
16,505

 
17,814

2018
1,322

 
16,413

 
17,735

2019
318

 
16,374

 
16,692

2020
325

 
16,394

 
16,719

Thereafter
325

 
192,358

 
192,683

Total minimum lease payments
$
5,520

 
$
273,383

 
$
278,903
Minimum and Contingent Rent Expense
Rent expense, excluding real estate taxes, CAM charges, insurance, deferred lease incentives and other expenses related to operating leases for the years ended December 27, 2015, December 28, 2014 and December 29, 2013 consists of the following:
 
2015
 
2014
 
2013
Minimum rent—related parties
$
1,901

 
$
1,969

 
$
1,930

Contingent rent—related parties
646

 
600

 
543

Total rent—related parties
2,547

 
2,569

 
2,473

Minimum rent—unrelated parties
12,401

 
9,888

 
7,945

Contingent rent—unrelated parties
355

 
291

 
237

Total rent—unrelated parties
12,756

 
10,179

 
8,182

Total minimum and contingent rent
$
15,303

 
$
12,748

 
$
10,655