Commitments and Contingencies (Details)			3 Months Ended				3 Months Ended			3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2015 Cruise ships on order USD ($)	Mar. 31, 2015 Unsecured term loan maturing 12 years after ship delivery	Mar. 31, 2015 Unsecured term loan maturing 12 years after ship delivery Oasis class fourth ship USD ($)	Mar. 31, 2015 Unsecured term loan maturing 12 years after ship delivery Oasis class fourth ship EUR (€)	Mar. 31, 2015 Oasis Class Ship Term Loans Oasis class fourth ship	Mar. 31, 2015 LIBOR Oasis Class Ship Term Loans Oasis class fourth ship	Mar. 31, 2015 Celebrity Cruise Ships Project Edge Class Ship ship berth	Dec. 31, 2014 Class Action Complaint crew_member
Commitments and Contingencies
Anticipated loan balance					$ 1,000,000,000	€ 931,200,000
Long term debt, term				12 years			12 years
Long term debt, interest rate							3.82%
Margin on floating rate base								1.10%
Number of ships on order									2
Approximate Berths									2,900
Aggregate cost of ships expected to enter service			4,900,000,000
Deposit for the purchase of ships expected to enter service			$ 554,200,000
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate	25.10%	28.80%
Number of crew members submitting demands for arbitration (in excess)										575