Fair Value Measurements and Derivative Instruments (Intangible and Long-lived Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	$ 0	$ 0
Total Carrying Amount | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	121,565	132,603
Total Fair Value | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total Assets	$ 121,565	$ 132,603
Pullmantur | Goodwill
Fair Value Inputs [Abstract]
Discount rate	11.00%
Pullmantur | Intangible Assets
Fair Value Inputs [Abstract]
Discount rate	11.50%
Pullmantur | Fair Value, Measurements, Nonrecurring
Asset Impairment Charges [Abstract]
Pullmantur Goodwill, Total Impairment	$ 123,814
Indefinite-life intangible asset-Pullmantur trademarks and trade names, Total Impairment	174,285
Total impairment	411,267
Pullmantur | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pullmantur Goodwill	0
Indefinite-life intangible assets-Pullmantur trademarks and trade names	0
Total Assets	140,846
Pullmantur | Total Carrying Amount | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pullmantur Goodwill	0
Indefinite-life intangible assets-Pullmantur trademarks and trade names	0
Total Assets	140,846
Pullmantur | Total Fair Value | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pullmantur Goodwill	0
Indefinite-life intangible assets-Pullmantur trademarks and trade names	0
Total Assets	140,846
Air Transportation Equipment | Pullmantur | Fair Value, Measurements, Nonrecurring
Asset Impairment Charges [Abstract]
Long-lived assets-Pullmantur aircraft and vessels, Total Impairment	113,168
Air Transportation Equipment | Pullmantur | Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets-Pullmantur aircraft and vessels	140,846
Air Transportation Equipment | Pullmantur | Total Carrying Amount | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets-Pullmantur aircraft and vessels	140,846
Air Transportation Equipment | Pullmantur | Total Fair Value | Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets-Pullmantur aircraft and vessels	$ 140,846