v3.26.3
Summary of Significant Accounting Policies - Segment Reporting (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting Information [Line Items]        
Total revenue $ 2,946,763 $ 2,938,142 $ 7,918,528 $ 7,583,192
Cruise operating expense        
Total cruise operating expense 1,667,668 1,554,859 4,632,357 4,315,644
Other operating expense        
Depreciation and amortization 287,703 250,832 819,624 725,889
Non-operating income (expense)        
Interest expense, net (190,111) (278,155) (564,473) (782,390)
Other income (expense), net 200,096 (134,429) 341,472 (56,972)
Service cost 614 553 1,842 1,658
Professional advisory fees 150   5,392  
Severance costs and other fees 2,710   20,362  
Loss on ship disposal 16,825   16,825  
Net income before income taxes 634,189 336,964 998,394 535,841
Commissions, transportation and other        
Cruise operating expense        
Total cruise operating expense 547,675 521,981 1,429,948 1,405,159
Onboard and other        
Segment Reporting Information [Line Items]        
Total revenue 1,001,124 888,183 2,700,730 2,405,564
Cruise operating expense        
Total cruise operating expense 236,180 222,002 579,494 548,544
Fuel        
Cruise operating expense        
Total cruise operating expense 195,733 175,913 584,043 508,304
Food        
Cruise operating expense        
Total cruise operating expense 92,043 81,866 260,047 238,777
Other        
Cruise operating expense        
Total cruise operating expense 205,722 197,701 613,721 578,827
Single reportable segment        
Segment Reporting Information [Line Items]        
Total revenue 2,946,763 2,938,142 7,918,528 7,583,192
Cruise operating expense        
Adjusted total cruise operating expense 1,661,267 1,548,818 4,613,920 4,298,266
Other operating expense        
Adjusted marketing, general and administrative 348,794 369,973 1,168,573 1,117,578
Adjusted depreciation and amortization 270,878 250,832 802,799 725,889
Adjusted total other operating expense 619,672 620,805 1,971,372 1,843,467
Adjusted operating income 665,824 768,519 1,333,236 1,441,459
Non-operating income (expense)        
Non-cash compensation, severance, professional advisory fees and loss on ship disposal (41,620) (18,971) (111,841) (66,256)
Interest expense, net (190,111) (278,155) (564,473) (782,390)
Other income (expense), net 200,096 (134,429) 341,472 (56,972)
Net income before income taxes 634,189 336,964 998,394 535,841
Single reportable segment | Commissions, transportation and other        
Cruise operating expense        
Total cruise operating expense 547,675 521,981 1,429,948 1,405,159
Single reportable segment | Onboard and other        
Cruise operating expense        
Total cruise operating expense 236,180 222,002 579,494 548,544
Single reportable segment | Adjusted payroll and related        
Cruise operating expense        
Adjusted total cruise operating expense 383,914 349,355 1,146,667 1,018,655
Single reportable segment | Fuel        
Cruise operating expense        
Total cruise operating expense 195,733 175,913 584,043 508,304
Single reportable segment | Food        
Cruise operating expense        
Total cruise operating expense 92,043 81,866 260,047 238,777
Single reportable segment | Other        
Cruise operating expense        
Total cruise operating expense $ 205,722 $ 197,701 $ 613,721 $ 578,827