Fair Value Measurements and Derivative Instruments (Details 3) (USD $)			6 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended	6 Months Ended		6 Months Ended		6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2013 Interest rate swaps	Jun. 30, 2013 Interest rate swaps Unsecured senior notes 5.25% due 2022	Jun. 30, 2013 Interest rate swaps Fair Value Hedging 5.41% Fixed rate debt	Dec. 31, 2012 Interest rate swaps Fair Value Hedging 5.41% Fixed rate debt	Jun. 30, 2013 Interest rate swaps Fair Value Hedging Unsecured senior notes 5.25% due 2022	Jun. 30, 2013 Interest rate swaps Cash flow hedge Celebrity Reflection floating rate debt	Dec. 31, 2012 Interest rate swaps Cash flow hedge Celebrity Reflection floating rate debt	Jun. 30, 2013 Interest rate swaps Cash flow hedge Quantum of the Seas facility	Jun. 30, 2013 Interest rate swaps Cash flow hedge Quantum of the Seas facility Scenario forecast	Jun. 30, 2013 Interest rate swaps Cash flow hedge Anthem of the Seas facility	Jun. 30, 2013 Interest rate swaps Cash flow hedge Anthem of the Seas facility Scenario forecast	Jun. 30, 2013 Foreign exchange contracts	Jun. 30, 2013 Fuel contracts
Derivative instruments disclosure
Exposure under foreign currency forward contracts, foreign currency collar options, fuel call options, interest rate and fuel swap agreements	$ 16,100,000	$ 60,800,000
Derivative instrument, contractual life			3 years											3 years	4 years
Percentage of long-term debt with fixed interest rate	38.60%	45.80%
Unsecured term loan					420,000,000	420,000,000	650,000,000
Debt amount					297,500,000
Interest rate on hedged debt (as a percent)					5.41%	5.41%	5.25%
Derivative floating rate base					LIBOR	LIBOR	LIBOR
Derivative variable rate of interest (as a percent)					4.30%		3.91%
Anticipated loan balance								627,200,000	627,200,000	735,000,000		725,000,000
Additional interest above LIBOR rate (as a percent)							3.63%	0.40%	0.40%	1.30%		1.30%
Debt floating rate base				LIBOR				LIBOR	LIBOR	LIBOR		LIBOR
Additional interest above LIBOR rate (as a percent)					3.87%	3.87%
Fixed rate on converted debt (as a percent)								2.85%	2.85%		3.74%		3.86%
Notional amount of outstanding debt related to interest rate swap	$ 3,000,000,000	$ 2,400,000,000