Goodwill and Other Assets (Details)	3 Months Ended				3 Months Ended			3 Months Ended				3 Months Ended		3 Months Ended								1 Months Ended
	Mar. 31, 2015 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2014 USD ($)	Mar. 31, 2015 Nautalia	Mar. 31, 2015 Grand Bahamas Shipyard Ltd. Not Primary Beneficiary USD ($)	Mar. 31, 2014 Grand Bahamas Shipyard Ltd. Not Primary Beneficiary USD ($)	Dec. 31, 2014 Grand Bahamas Shipyard Ltd. Not Primary Beneficiary USD ($)	Mar. 31, 2015 TUI Cruises GmbH joint venture USD ($)	Mar. 31, 2015 TUI Cruises GmbH joint venture EUR (€)	Dec. 31, 2014 TUI Cruises GmbH joint venture USD ($)	Dec. 31, 2014 TUI Cruises GmbH joint venture EUR (€)	Mar. 31, 2015 Skysea Holding USD ($)	Dec. 31, 2014 Skysea Holding USD ($)	Mar. 31, 2015 Exquisite Marine Ltd and Skysea Holding [Member]	Mar. 31, 2015 Equity Grand Bahamas Shipyard Ltd. Not Primary Beneficiary USD ($)	Dec. 31, 2014 Equity Grand Bahamas Shipyard Ltd. Not Primary Beneficiary USD ($)	Mar. 31, 2015 Loans Grand Bahamas Shipyard Ltd. Not Primary Beneficiary USD ($)	Dec. 31, 2014 Loans Grand Bahamas Shipyard Ltd. Not Primary Beneficiary USD ($)	Mar. 31, 2015 Pullmantur USD ($)	Mar. 31, 2015 Tradenames and Trademarks Pullmantur USD ($)	Dec. 31, 2011 Celebrity Century TUI Cruises GmbH joint venture EUR (€)	Mar. 31, 2015 Splendour of the Seas TUI Cruises GmbH joint venture USD ($)	Mar. 31, 2015 Splendour of the Seas TUI Cruises GmbH joint venture EUR (€)	Mar. 31, 2015 Trade Accounts Receivable [Member] USD ($)	Dec. 31, 2014 Trade Accounts Receivable [Member] USD ($)
Goodwill and Other Assets
Goodwill	$ 405,422,000		$ 420,542,000																$ 118,600,000
Indefinite-lived intangible assets																				166,900,000
Percentage of ownership interest					40.00%			50.00%	50.00%			35.00%
Investments in entity					53,900,000		53,800,000	363,700,000		370,100,000		106,100,000	106,300,000
Debt, guaranteed percentage								50.00%	50.00%													50.00%	50.00%
Unsecured term loan									180,000,000.0
Amount outstanding on bank loan								120,800,000	112,500,000
Line of credit provided to TUI Cruises											125,000,000.0										90,000,000.0
Interest rate on loan provided to related party (as a percent)								5.00%	5.00%			3.00%										6.25%	6.25%
Hedged sales price of ship																						213,000,000
Additional borrowing on line of credit provided to TUI Cruises								102,000,000	95,000,000
Bank financing commitment percentage								80.00%	80.00%
Reduction of current ownership interest (as a percent)								37.50%	37.50%
Expected sales price of ship																							188,000,000
Advances to Affiliate												80,000,000					46,100,000	46,100,000
Long term debt, term																						10 years	10 years
Underlying equity in net assets															7,800,000	7,700,000
Principal and interest payments received	8,280,000	11,610,000			100,000	800,000
Increase in interest rate												0.50%
Guarantee percent														100.00%
Non controlling interest percentage				19.00%
Income from equity method investments	9,200,000	5,000,000
Notes, Loans and Financing Receivable, Gross, Current																								$ 75,400,000	$ 38,000,000