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Operating Lease Agreements (Schedule of Details of Rent Expense) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Total rent expense | $ 203,216 | $ 174,453 | $ 171,613
Company Operated Restaurants [Member] |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Total rent expense | 148,505 | 131,142 | 135,232
Franchised Restaurants [Member] |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Total rent expense | $ 54,711 | $ 43,311 | $ 36,381

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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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