Quarterly report [Sections 13 or 15(d)]

Long-Term Debt (Details)

v3.26.3
Long-Term Debt (Details)
$ in Thousands, € in Billions
1 Months Ended 9 Months Ended
Oct. 31, 2026
USD ($)
Sep. 30, 2025
USD ($)
Sep. 30, 2026
USD ($)
Mar. 31, 2026
EUR (€)
Debt Instrument [Line Items]        
Loss on extinguishment of debt   $ (272,085)    
Revolving Loan Facility        
Debt Instrument [Line Items]        
Debt instrument redemption amount $ 380,000      
Maximum borrowing capacity 2,800,000   $ 2,500,000  
Norwegian Aqua Term Loan        
Debt Instrument [Line Items]        
Principal amount | €       € 1.0
Fixed interest percentage rate       1.91%
Norwegian Luna Term Loan        
Debt Instrument [Line Items]        
Export credit facility financing as percentage of contract price       80.00%
0.875% Exchangeable Senior Notes Due 2030        
Debt Instrument [Line Items]        
Effective interest rate     1.07%  
0.750% Exchangeable Senior Notes Due 2030        
Debt Instrument [Line Items]        
Effective interest rate     1.14%  
1.125% Exchangeable Senior Notes Due 2027        
Debt Instrument [Line Items]        
Effective interest rate     1.64%  
2.5% Exchangeable Senior Notes Due 2027        
Debt Instrument [Line Items]        
Effective interest rate     3.06%  
Senior Unsecured Notes Due 2031        
Debt Instrument [Line Items]        
Principal amount $ 950,000      
Interest rate 8.75%      
Senior Unsecured Notes Due 2031 | Call Date, Scenario One        
Debt Instrument [Line Items]        
Redemption price as a percentage of face amount 100.00%      
Senior Unsecured Notes Due 2031 | Call Date, Scenario Two        
Debt Instrument [Line Items]        
Percentage of principal amount of debt redeemed 40.00%      
Redemption price as a percentage of face amount 108.75%      
Percentage of thresholds, after percentage 60.00%      
Senior Notes Due 2028        
Debt Instrument [Line Items]        
Interest rate 6.125%      
Export-Credit Backed Financing Facilities        
Debt Instrument [Line Items]        
Debt instrument redemption amount $ 42,200