Commitments and Contingencies (Details) € in Millions, $ in Millions	1 Months Ended		9 Months Ended
	Jul. 31, 2016 ft²	Jun. 30, 2016 USD ($) ship	Sep. 30, 2016 USD ($)	Oct. 28, 2016 ship berth	Jun. 30, 2016 EUR (€) ship	Dec. 31, 2015
Commitments and Contingencies
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate						58.00%
Cruise ships on order
Commitments and Contingencies
Aggregate cost of ships on order, not including TUI cruises on order | $			$ 5,300.0
Deposit for the purchase of ships expected to enter service | $			$ 282.0
Percentage of aggregate cost exposed to fluctuations in the euro exchange rate			56.10%			58.20%
Project Edge Class Ship Term Loans [Member] | Project Edge Class Ship
Commitments and Contingencies
Debt Instrument, Amortization Period		12 years
Long term debt, interest rate		3.23%			3.23%
Percentage of bank committed financing		80.00%			80.00%
Guarantee Percent		100.00%
Project Edge Class Ship Term Loans [Member] | Project Edge Ship I
Commitments and Contingencies
Anticipated loan balance		$ 699.4			€ 622.6
Project Edge Class Ship Term Loans [Member] | Project Edge Ship II
Commitments and Contingencies
Anticipated loan balance		$ 733.1			€ 652.6
Celebrity Cruise Ships | Project Edge Class Ship
Commitments and Contingencies
Number of Ships under Construction | ship		2			2
Royal Caribbean International Cruise Ships | Project Icon ships | Subsequent Event
Commitments and Contingencies
Ship Passenger Capacity Berths | berth				5,000
Number of ships on order | ship				2
Port of Miami Terminal
Commitments and Contingencies
Expected size of terminal | ft²	170,000
Terminal lease, term of contract	5 years