Fair Value Measurements and Derivative Instruments - Derivative Instruments (Details) (USD $)			3 Months Ended						3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Forward Contracts	Mar. 31, 2013 Forward Contracts	Mar. 31, 2014 Forward Contracts Not Designated	Jan. 31, 2014 Forward Contracts Designated as Hedging Instrument	Mar. 31, 2014 Foreign exchange contracts	Dec. 31, 2013 Foreign exchange contracts	Mar. 31, 2014 Cruise ships on order
Gains and losses from derivatives involved in hedging relationships
Aggregate cost of ships on order, including the conditional agreement for a third Quantum - class ship									$ 4,800,000,000
Amount deposited for cost of ships on order, including the conditional agreement for a third Quantum - class ship									483,200,000
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate	23.90%	36.30%
Notional amount					398,800,000	415,600,000	3,100,000,000	2,500,000,000
Change in fair value of foreign currency forward contracts recognized in earnings			$ 1,900,000	$ (8,600,000)