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Property and Equipment - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Property, Plant and Equipment [Line Items] |  |
Accrued capital expenditures | $ 11.7 | $ 10.8
Construction in progress |  |
Property, Plant and Equipment [Line Items] |  |
Impairment loss | 1.8 |
Hotel |  |
Property, Plant and Equipment [Line Items] |  |
Insurance coverage, per covered event (up to) | 361.0 |
Book value written on impaired asset | 41.7 |
Insurance settlements receivable | $ 40.8 |

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