v3.26.1
Summary of Significant Accounting Policies - Other (Details)
$ in Thousands, shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
item
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2026
USD ($)
item
segment
shares
Jun. 30, 2025
USD ($)
shares
Dec. 31, 2025
USD ($)
Schedule Of Significant Accounting Policies [Line Items]          
Antidilutive securities excluded from computation of earnings per share | shares 8.0 59.3 4.0 70.1  
Number of reportable segments | segment     1    
Foreign currency transaction gain (loss) $ 36,100 $ (158,500) $ 74,800 $ (181,000)  
Accounts receivable, net 276,958   276,958   $ 291,659
Ship, carrying value $ 20,437,529   $ 20,437,529   $ 19,068,807
Number of cruise ships | item 35   35    
Sales Revenue, Net | Geographic Concentration Risk          
Schedule Of Significant Accounting Policies [Line Items]          
Concentration risk, benchmark     No other individual country’s revenues exceed 10% in any given period.    
UNITED STATES | Sales Revenue, Net | Geographic Concentration Risk | Passenger [Member]          
Schedule Of Significant Accounting Policies [Line Items]          
Percentage of revenue attributable to U.S.- sourced passengers     84.00%