Note 8. Restaurant Operations Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Note 8. Restaurant Operations Revenues
Net sales	$ 152,062	$ 191,797	$ 317,693	$ 377,368
Franchise royalties and fees	7,146	7,773	14,058	14,875
Other	853	1,024	2,085	2,285
Restaurant operations revenue	$ 160,061	$ 200,594	$ 333,836	$ 394,528