Commitments and Contingencies (Details) (USD $)	6 Months Ended
	Jun. 30, 2012 item	Dec. 31, 2011
Commitments and Contingencies
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate	15.60%	43.30%
Approximate Berths	11,200
Number of Project Sunshine ships for which the entity has committed bank financing arrangements	2
Solstice-class, Celebrity Reflection
Commitments and Contingencies
Approximate Berths	3,000
Project Sunshine: Unnamed One
Commitments and Contingencies
Approximate Berths	4,100
Project Sunshine: Unnamed Two
Commitments and Contingencies
Approximate Berths	4,100
Cruise ships on order
Commitments and Contingencies
Aggregate cost of ships expected to enter service	3,000,000,000
Deposit for the purchase of ships expected to enter service	227,900,000
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate	15.60%