Note 18 - Other Supplemental Information (Details) - Summary of Other Supplemental Information (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Franchisor operations
Revenues	$ 2,714,273us-gaap_Revenues	$ 2,344,625us-gaap_Revenues	$ 2,098,987us-gaap_Revenues
Operating earnings	134,427us-gaap_OperatingIncomeLoss	88,780us-gaap_OperatingIncomeLoss	79,248us-gaap_OperatingIncomeLoss
Cash payments made during the period
Income taxes	56,336us-gaap_IncomeTaxesPaid	46,159us-gaap_IncomeTaxesPaid	25,673us-gaap_IncomeTaxesPaid
Interest	15,370us-gaap_InterestPaid	17,314us-gaap_InterestPaid	18,860us-gaap_InterestPaid
Non-cash financing activities
Increases in capital lease obligations	3,714us-gaap_CapitalLeaseObligationsIncurred	2,215us-gaap_CapitalLeaseObligationsIncurred	2,948us-gaap_CapitalLeaseObligationsIncurred
Other expenses
Rent expense	73,281us-gaap_LeaseAndRentalExpense	69,489us-gaap_LeaseAndRentalExpense	68,580us-gaap_LeaseAndRentalExpense
Franchisor Operations [Member]
Franchisor operations
Revenues	90,684	80,450	75,025
Operating earnings	22,071	19,435	16,801
Initial franchise fee revenues	$ 5,042	$ 5,817	$ 5,950

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The increase during the period in capital lease obligations due to entering into new capital leases.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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The amount of initial franchise fees.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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