Leases - Lease Terms, Assets and Liabilities (Details) $ in Thousands	Jun. 30, 2019 USD ($) installment	Dec. 31, 2018 USD ($)
Assets
Operating lease assets	$ 148,868	$ 161,027
Right-of-use assets held for sale	4,015
Total lease assets	152,883	161,027
Liabilities
Current Operating	24,103	25,348
Noncurrent Operating	124,458	137,511
Lease liabilities held for sale	4,199
Total lease liabilities	$ 152,760	$ 162,859
Domestic Company-owned restaurants
Leases
Term of lease contracts	5 years
Domestic Company-owned restaurants | Minimum
Leases
Number of operating lease renewals | installment	1
United Kingdom franchise-owned restaurants
Leases
Term of lease contracts	15 years
Domestic commissary locations
Leases
Term of lease contracts	10 years
Domestic commissary locations | Minimum
Leases
Number of operating lease renewals | installment	1
Domestic and international tractors and trailers | Minimum
Leases
Term of lease contracts	5 years
Domestic and international tractors and trailers | Maximum
Leases
Term of lease contracts	7 years
Domestic and international commissary and office equipment | Minimum
Leases
Term of lease contracts	3 years
Domestic and international commissary and office equipment | Maximum
Leases
Term of lease contracts	5 years