Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Detail Textuals)

v3.3.1.900
Summary of Significant Accounting Policies (Detail Textuals)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
USD ($)
CruiseShip
Segment
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Schedule Of Significant Accounting Policies [Line Items]      
Allowance for doubtful accounts $ 3,700 $ 2,800  
Advertising costs included in prepaid expenses and other assets 12,500 14,300  
Expenses related to advertising costs $ 232,200 122,500 $ 89,000
Reduction in estimated residual values, percentage 15.00%    
Amounts of tax included on a gross basis $ 242,100 212,300 172,500
Foreign currency transaction gain $ 11,000 6,000 $ 400
Number of reportable segments | Segment 1    
Number of cruises ships | CruiseShip 22    
Ship, carrying value $ 9,458,805 $ 8,623,773  
Sales Revenue, Net      
Schedule Of Significant Accounting Policies [Line Items]      
Revenue attributable to North American guests 75.00% 73.00% 74.00%
Concentration Risk, Additional Characteristic No other individual country's revenues exceeded 10% in any of our last three years.    
Bahamas Registry      
Schedule Of Significant Accounting Policies [Line Items]      
Number of cruises ships | CruiseShip 16    
Ship, carrying value $ 7,200,000 $ 6,400,000  
Marshall Island Registry      
Schedule Of Significant Accounting Policies [Line Items]      
Number of cruises ships | CruiseShip 5    
Ship, carrying value $ 1,400,000 1,400,000  
U.S. Registry      
Schedule Of Significant Accounting Policies [Line Items]      
Number of cruises ships | CruiseShip 1    
Ship, carrying value $ 300,000 300,000  
Bermuda registry      
Schedule Of Significant Accounting Policies [Line Items]      
Number of cruises ships | CruiseShip 1    
Ship, carrying value $ 800,000 $ 800,000