Related Parties (Details) $ in Thousands	3 Months Ended
	Apr. 02, 2017 USD ($) Rate shares	Jan. 01, 2017 shares
Related Party Transaction [Line Items]
Preferred stock, shares issued | shares	100	100
Board of directors, number of members	2
Franchise Term	20 years
ROFR liability to BKC | $	$ 7,500
Affiliated Entity [Member]
Related Party Transaction [Line Items]
Convertible Preferred Stock, Common Shares Issuable upon Conversion | shares	9,414,580
Preferred stock, ownership percentage if converted | Rate	20.60%
Initial Franchise Fees | $	$ 50
Franchise Term	20 years
Property leases	271
Property Leases Identical to BKC's Lease with Third Party [Member] | Affiliated Entity [Member]
Related Party Transaction [Line Items]
Property leases	139