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Noncontrolling Interest, Unconsolidated Entity, Ownership Percentage by Noncontrolling Owners

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Notes Receivable, Sale of Ownership Interest and Property, Plant and Equipment

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Number of Aircraft Sold

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Number of Impaired Assets, Aircraft

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Number of Impaired Assets, Cruise Ship

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Percentage Sold of Ownership in Unconsolidated Entity

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No definition available.

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- Definition

Represents the percentage of subsidiary which has been sold.

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Represents the time at which the immaterial gain related to the sale of the Ocean Dream ship will be recognized.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
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-Paragraph 1
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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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-Name Accounting Standards Codification
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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Amount of interest capitalized during the period.

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Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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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.

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Property and Equipment (Narrative) (Details) $ in Thousands, € in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2017 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2017 USD ($) loan aircraft	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) ship aircraft	Dec. 31, 2017 EUR (€)	Jul. 31, 2016
Property and Equipment
Capitalized interest cost			$ 24,200	$ 25,300	$ 26,500
Proceeds from divestiture				26,000
Number of impaired ships \| ship					2
Number of impaired aircraft \| aircraft					3
Promissory note receivable			$ 20,409	$ 213,042	$ 0
Pullmantur and CDF Croisieres De France
Property and Equipment
Percentage of subsidiary which has been sold			51.00%			51.00%	51.00%
Pullmantur's Aircraft
Property and Equipment
Impairment of Pullmantur related assets held for use		$ 113,200
Maritime Equipment
Property and Equipment
Gain (Loss) on Disposition of Property Plant Equipment	$ 30,900
Ocean Dream Ship
Property and Equipment
Long term debt, stated interest rate (as a percent)					6.00%
Promissory note receivable					$ 34,600
Debt instrument, term					9 years
Time at which the immaterial gain due to sale of ship will be recognized					9 years
Wamos Air, S.A.
Property and Equipment
Number of aircraft sold \| aircraft			3
Percentage of ownership stake sold			6.00%
Loans Receivable, Number of Loans Extended for Sale of Assets \| loan			2
Notes receivable obtained from divestiture			$ 20,800			€ 17.3
Wamos Air, S.A.
Property and Equipment
Ownership percentage			13.00%			13.00%
Minimum \| Wamos Air, S.A.
Property and Equipment
Long term debt, stated interest rate (as a percent)			4.775%			4.775%
Maximum \| Wamos Air, S.A.
Property and Equipment
Long term debt, stated interest rate (as a percent)			5.35%			5.35%