Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Textuals) (Details)

v3.19.3.a.u2
Long-Term Debt (Textuals) (Details)
$ in Thousands, € in Millions
1 Months Ended 12 Months Ended
Dec. 31, 2019
EUR (€)
Dec. 16, 2019
USD ($)
Oct. 30, 2019
USD ($)
May 15, 2019
USD ($)
Jan. 10, 2019
USD ($)
Jan. 02, 2019
USD ($)
Oct. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
EUR (€)
Dec. 31, 2018
USD ($)
Debt Instrument [Line Items]                          
Interest expense, net               $ 272,900 $ 270,400 $ 267,800      
Amortization of deferred financing costs               27,500 31,400 32,500      
Accrued interest liability                     $ 33,300   $ 37,200
Loss on extinguishment of debt               13,397 $ 6,346 22,211      
Loss on extinguishment of and modification debt               $ 16,700   $ 23,900      
Norwegian Encore                          
Debt Instrument [Line Items]                          
Contract price percentage     80.00%                    
Interest rate     3.92%                    
Principal amount     $ 882,900                    
Maturity date     Oct. 30, 2031                    
Term Loan A                          
Debt Instrument [Line Items]                          
Prior principal amount                     1,565,512   1,256,167
$565.0 Million 3.625% Senior Unsecured Notes                          
Debt Instrument [Line Items]                          
Prior principal amount                     558,781    
Interest rate               3.625% 3.625%        
Principal amount                     565,000   565,000
$75.0 Million Revolving Credit Line                          
Debt Instrument [Line Items]                          
Prior principal amount                     75,000    
Revolving credit line amount                     $ 75,000   75,000
EUR 662.9 Million Norwegian Epic Term Loan                          
Debt Instrument [Line Items]                          
Prior principal amount                         $ 259,394
Principal amount | € € 662.9                     € 662.9  
LIBOR | $75.0 Million Revolving Credit Line                          
Debt Instrument [Line Items]                          
Basis spread on variable rate             0.95%            
Revolving credit line | $75.0 Million Revolving Credit Line                          
Debt Instrument [Line Items]                          
Revolving credit line amount             $ 75,000            
Maturity date             October 2020            
Line of credit facility, interest rate description             LIBOR plus a margin of 0.95%            
Senior Notes due 2021 (the "Notes") [Member]                          
Debt Instrument [Line Items]                          
Interest rate   4.75%                      
Principal amount   $ 565,000                      
Percentage of principal amount of redeemed   100.00%                      
Write-off of financing fees   $ 2,700                      
Fourth Amended And Restated Credit Agreement | New Term A Loan Facility and New Revolving Loan Facility | Eurocurrency loans | Maximum                          
Debt Instrument [Line Items]                          
Basis spread on variable rate           1.75%              
Fourth Amended And Restated Credit Agreement | New Term A Loan Facility and New Revolving Loan Facility | Eurocurrency loans | Minimum                          
Debt Instrument [Line Items]                          
Basis spread on variable rate           1.00%              
Fourth Amended And Restated Credit Agreement | New Term A Loan Facility and New Revolving Loan Facility | Base rate loans | Maximum                          
Debt Instrument [Line Items]                          
Basis spread on variable rate           0.75%              
Fourth Amended And Restated Credit Agreement | New Term A Loan Facility and New Revolving Loan Facility | Base rate loans | Minimum                          
Debt Instrument [Line Items]                          
Basis spread on variable rate           0.00%              
NCLC | $565.0 Million 3.625% Senior Unsecured Notes                          
Debt Instrument [Line Items]                          
Interest rate   3.625%           3.625%          
Principal amount   $ 565,000                      
Percentage of principal amount of redeemed               100.00%          
Redemption price as a percentage of face amount               103.625%          
Percentage of aggregate principal amount of the Notes issued remains outstanding               60.00%          
NCLC | $565.0 Million 3.625% Senior Unsecured Notes | Maximum                          
Debt Instrument [Line Items]                          
Percentage of principal amount of redeemed               40.00%          
NCLC | EUR 662.9 Million Norwegian Epic Term Loan                          
Debt Instrument [Line Items]                          
Loss on extinguishment of debt       $ (1,100)                  
NCLC | Term Loan A Facility | Nordea Bank ABP                          
Debt Instrument [Line Items]                          
Principal amount         $ 230,000                
NCLC | Term Loan A Facility | Bank of America                          
Debt Instrument [Line Items]                          
Principal amount       $ 260,000                  
NCLC | Term Loan A Facility | LIBOR | Nordea Bank ABP                          
Debt Instrument [Line Items]                          
Maturity date         Jan. 10, 2021                
Basis spread on variable rate         1.00%                
Basis spread on variable rate after extension of maturity date         1.10%                
NCLC | Term Loan A Facility | LIBOR | Bank of America                          
Debt Instrument [Line Items]                          
Description of variable rate basis       LIBOR                  
Maturity date       May 15, 2022                  
Basis spread on variable rate       0.80%                  
NCLC | Fourth Amended And Restated Credit Agreement                          
Debt Instrument [Line Items]                          
Loss on extinguishment of debt           $ (2,900)              
NCLC | Fourth Amended And Restated Credit Agreement | Revolving credit line                          
Debt Instrument [Line Items]                          
Revolving credit line amount           $ 875,000              
NCLC | Fourth Amended And Restated Credit Agreement | New Term A Loan Facility and New Revolving Loan Facility | Maximum                          
Debt Instrument [Line Items]                          
Commitment fee, percentage           0.30%              
NCLC | Fourth Amended And Restated Credit Agreement | New Term A Loan Facility and New Revolving Loan Facility | Eurocurrency loans                          
Debt Instrument [Line Items]                          
Basis spread on variable rate 1.25%                        
NCLC | Fourth Amended And Restated Credit Agreement | Term Loan                          
Debt Instrument [Line Items]                          
Prior principal amount           $ 1,300              
Principal amount           $ 1,600