v3.26.1
Summary of Significant Accounting Policies - Segment Reporting (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting Information [Line Items]        
Total revenue $ 2,640,544 $ 2,517,497 $ 4,971,765 $ 4,645,050
Cruise operating expense        
Total cruise operating expense 1,586,808 1,456,847 2,964,689 2,760,785
Other operating expense        
Depreciation and amortization 271,205 243,760 531,921 475,057
Non-operating income (expense)        
Interest expense, net (189,915) (260,013) (374,362) (504,235)
Other income (expense), net (24,843) (167,729) 141,376 77,457
Service cost 614 552 1,228 1,105
Professional advisory fees 175   5,242  
Severance costs and other fees 7,460   17,652  
Net income (loss) before income taxes 149,133 (3,167) 364,205 198,877
Commissions, transportation and other        
Cruise operating expense        
Total cruise operating expense 484,668 487,835 882,273 883,178
Onboard and other        
Segment Reporting Information [Line Items]        
Total revenue 910,706 808,512 1,699,606 1,517,381
Cruise operating expense        
Total cruise operating expense 191,446 187,684 343,314 326,542
Fuel        
Cruise operating expense        
Total cruise operating expense 219,384 157,377 388,310 332,391
Food        
Cruise operating expense        
Total cruise operating expense 87,322 81,323 168,004 156,911
Other        
Cruise operating expense        
Total cruise operating expense 209,415 196,495 407,999 381,126
Single reportable segment        
Segment Reporting Information [Line Items]        
Total revenue 2,640,544 2,517,497 4,971,765 4,645,050
Cruise operating expense        
Adjusted total cruise operating expense 1,580,609 1,450,887 2,952,653 2,749,448
Other operating expense        
Adjusted marketing, general and administrative 393,856 371,824 819,779 747,605
Depreciation and amortization 271,205 243,760 531,921 475,057
Adjusted total other operating expense 665,061 615,584 1,351,700 1,222,662
Adjusted operating income 394,874 451,026 667,412 672,940
Non-operating income (expense)        
Non-cash compensation, severance and professional advisory fees (30,983) (26,451) (70,221) (47,285)
Interest expense, net (189,915) (260,013) (374,362) (504,235)
Other income (expense), net (24,843) (167,729) 141,376 77,457
Net income (loss) before income taxes 149,133 (3,167) 364,205 198,877
Single reportable segment | Commissions, transportation and other        
Cruise operating expense        
Total cruise operating expense 484,668 487,835 882,273 883,178
Single reportable segment | Onboard and other        
Cruise operating expense        
Total cruise operating expense 191,446 187,684 343,314 326,542
Single reportable segment | Adjusted payroll and related        
Cruise operating expense        
Adjusted total cruise operating expense 388,374 340,173 762,753 669,300
Single reportable segment | Fuel        
Cruise operating expense        
Total cruise operating expense 219,384 157,377 388,310 332,391
Single reportable segment | Food        
Cruise operating expense        
Total cruise operating expense 87,322 81,323 168,004 156,911
Single reportable segment | Other        
Cruise operating expense        
Total cruise operating expense $ 209,415 $ 196,495 $ 407,999 $ 381,126