Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Summary of Exchangeable Notes (Details)

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Long-Term Debt - Summary of Exchangeable Notes (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2024
Dec. 31, 2023
Debt Instrument [Line Items]      
Fair Value $ 13,000,000 $ 13,000,000 $ 13,500,000
Exchangeable Senior Notes Due 2024      
Debt Instrument [Line Items]      
Principal amount     146,601
Unamortized debt discount, including deferred financing fees     (557)
Net carrying amount     146,044
Common share issuance for NCLC Exchangeable Notes 10,658,607 10,658,607  
Exchangeable Senior Notes Due 2025      
Debt Instrument [Line Items]      
Principal amount $ 449,990 $ 449,990 449,990
Unamortized debt discount, including deferred financing fees (2,801) (2,801) (3,963)
Net carrying amount $ 447,189 $ 447,189 446,027
Effective interest rate 5.97% 5.97%  
1.125% Exchangeable Senior Notes Due 2027      
Debt Instrument [Line Items]      
Principal amount $ 1,150,000 $ 1,150,000 1,150,000
Unamortized debt discount, including deferred financing fees (15,165) (15,165) (17,921)
Net carrying amount $ 1,134,835 $ 1,134,835 1,132,079
Effective interest rate 1.64% 1.64%  
2.5% Exchangeable Senior Notes Due 2027      
Debt Instrument [Line Items]      
Principal amount $ 473,175 $ 473,175 473,175
Unamortized debt discount, including deferred financing fees (6,670) (6,670) (7,836)
Net carrying amount $ 466,505 $ 466,505 465,339
Effective interest rate 3.06% 3.06%  
Level 2 | Exchangeable Senior Notes Due 2024      
Debt Instrument [Line Items]      
Fair Value     217,790
Level 2 | Exchangeable Senior Notes Due 2025      
Debt Instrument [Line Items]      
Fair Value $ 533,751 $ 533,751 572,567
Level 2 | 1.125% Exchangeable Senior Notes Due 2027      
Debt Instrument [Line Items]      
Fair Value 1,074,399 1,074,399 1,068,431
Level 2 | 2.5% Exchangeable Senior Notes Due 2027      
Debt Instrument [Line Items]      
Fair Value $ 454,310 $ 454,310 $ 453,784