Transactions with Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Related Party Transaction [Line Items]
Receivables	$ 185,586		$ 185,586		$ 125,870
Joint Venture Partner
Related Party Transaction [Line Items]
Fees earned and payroll costs reimbursed from marketing services arrangement	600	$ 500	1,400	$ 1,300
Member of Unconsolidated Joint Venture
Related Party Transaction [Line Items]
Royalty and marketing and reservation system fees	7,300	7,200	18,200	16,100
Receivables	2,100		2,100		$ 1,300
Commissions paid to travel agent	$ 65	$ 66	$ 200	$ 100

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- Definition

The amount of cash paid for commissions during the current period.

+ References

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- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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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.

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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