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Note 14 - Other Supplemental Information - Summary of Other Supplemental Information (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Revenues $ 1,482,889 $ 1,264,077
Operating earnings (loss) 90,550 70,747
Total assets 770,964 600,483
Cash payments made during the period    
Income taxes 9,968 3,358
Interest 8,648 4,366
Non-cash financing activities    
Increases in capital lease obligations 1,785 1,217
Other expenses    
Operating Leases, Rent Expense 25,422 20,229
Franchisor Operations [Member]    
Revenues 105,077 98,376
Operating earnings (loss) 31,807 27,707
Initial franchise fee revenues 6,054 5,474
Depreciation and amortization 3,923 3,533
Total assets $ 98,816 $ 86,982