Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Thousands |
Sep. 30, 2018 |
Dec. 31, 2017 |
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| Goodwill and Intangible Assets Disclosure [Abstract] | ||
| Goodwill | $ 510,160 | $ 525,780 |
| Net of accumulated impairment losses | 797,600 | 797,600 |
| Lease agreements | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Definite life intangibles | 4,200 | 4,700 |
| Franchise assets | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Franchise assets | $ 67,800 | $ 69,900 |
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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. No definition available.
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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