Commitments and Contingencies (Details) (USD $)	6 Months Ended
	Jun. 30, 2013 item	Dec. 31, 2012
Commitments and Contingencies
Aggregate cost of ships expected to enter service	$ 4,500,000,000
Deposit for the purchase of ships expected to enter service	288,800,000
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate	56.40%	49.70%
Approximate Berths	22,850
Quantum of the Seas facility
Commitments and Contingencies
Approximate Berths	4,150
Anthem of the Seas facility
Commitments and Contingencies
Approximate Berths	4,150
Quantum-class ship: Unnamed
Commitments and Contingencies
Approximate Berths	4,150
Oasis-class: Unnamed
Commitments and Contingencies
Approximate Berths	5,400
TUI Cruises - Mein Schiff 3
Commitments and Contingencies
Approximate Berths	2,500
TUI Cruises - Mein Schiff 4
Commitments and Contingencies
Approximate Berths	2,500
TUI Cruises
Commitments and Contingencies
Percentage of ownership interest	50.00%
Number of ships on order	6
Cruise ships on order
Commitments and Contingencies
Aggregate cost of ships expected to enter service	4,500,000,000
Deposit for the purchase of ships expected to enter service	$ 288,800,000
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate	56.40%