Fair value portion of assets classified as held for sale.

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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.

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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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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Fair Value Measurements and Derivative Instruments (Intangible and Long-lived Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2012
Assets and Liabilities not measured on a recurring basis
Long-lived assets, carrying value	$ 17,517,752us-gaap_PropertyPlantAndEquipmentNet	$ 17,517,752us-gaap_PropertyPlantAndEquipmentNet	$ 18,235,568us-gaap_PropertyPlantAndEquipmentNet
Carrying value of goodwill	439,231us-gaap_Goodwill	439,231us-gaap_Goodwill	420,542us-gaap_Goodwill
Pullmantur
Assets and Liabilities not measured on a recurring basis
Carrying value of goodwill	152,107	152,107	133,584	145,539
Pullmantur \| Aircraft
Assets and Liabilities not measured on a recurring basis
Long-lived assets, carrying value	63,000	63,000
Pullmantur \| Trademarks and trade names
Assets and Liabilities not measured on a recurring basis
Carrying value of indefinite-life intangible assets	214,112	214,112	188,038	204,866
Fair Value, Measurements, Nonrecurring \| Pullmantur
Assets and Liabilities not measured on a recurring basis
Restructuring related impairments	19,985
Fair Value, Measurements, Nonrecurring \| Pullmantur \| Level 3
Assets and Liabilities not measured on a recurring basis
Assets held for sale	0	0
Fair Value, Measurements, Nonrecurring \| Pullmantur \| Aircraft
Assets and Liabilities not measured on a recurring basis
Long-lived assets, Impairment	13,529
Fair Value, Measurements, Nonrecurring \| Pullmantur \| Aircraft \| Level 3
Assets and Liabilities not measured on a recurring basis
Long-lived assets - aircraft	49,507	49,507
Fair Value, Measurements, Nonrecurring \| Pullmantur \| Property and equipment
Assets and Liabilities not measured on a recurring basis
Restructuring related impairments	18,200
Reported Value Measurement \| Fair Value, Measurements, Nonrecurring \| Pullmantur
Assets and Liabilities not measured on a recurring basis
Assets held for sale	0	0
Reported Value Measurement \| Fair Value, Measurements, Nonrecurring \| Pullmantur \| Aircraft
Assets and Liabilities not measured on a recurring basis
Long-lived assets - aircraft	49,507	49,507
Total \| Fair Value, Measurements, Nonrecurring \| Pullmantur
Assets and Liabilities not measured on a recurring basis
Assets held for sale	0	0
Total \| Fair Value, Measurements, Nonrecurring \| Pullmantur \| Aircraft
Assets and Liabilities not measured on a recurring basis
Long-lived assets - aircraft	49,507	49,507
Pullmantur Cruise
Assets and Liabilities not measured on a recurring basis
Restructuring related impairments		$ 18,200