Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Details)

v3.19.3.a.u2
Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Details)
€ in Millions, $ in Millions
12 Months Ended
Dec. 31, 2019
EUR (€)
Dec. 31, 2018
EUR (€)
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
$875.0 Million Senior Secured Revolving Loan Facility        
Debt Instrument [Line Items]        
Maximum borrowing capacity     $ 875.0 $ 875.0
$75.0 Million Revolving Credit Line        
Debt Instrument [Line Items]        
Maximum borrowing capacity     75.0 75.0
$375.0 Million Term Loan B        
Debt Instrument [Line Items]        
Term loan amount     375.0 375.0
Original issue discount       0.7
$700.0 Million 4.750% Senior Unsecured Notes        
Debt Instrument [Line Items]        
Term loan amount     700.0 700.0
Interest rate 4.75% 4.75%    
$565.0 Million 3.625% Senior Unsecured Notes        
Debt Instrument [Line Items]        
Term loan amount     565.0 565.0
Interest rate 3.625% 3.625%    
EUR 662.9 Million Norwegian Epic Term Loan        
Debt Instrument [Line Items]        
Term loan amount | € € 662.9 € 662.9    
$260 Million Norwegian Jewel Term Loan        
Debt Instrument [Line Items]        
Term loan amount     260.0 260.0
$230 Pride of America Term Loan        
Debt Instrument [Line Items]        
Term loan amount     230.0 230.0
EUR 529.8 Million Breakaway One Loan        
Debt Instrument [Line Items]        
Term loan amount | € 529.8 529.8    
EUR 529.8 Million Breakaway Two Loan        
Debt Instrument [Line Items]        
Term loan amount | € 529.8 529.8    
EUR 590.5 Million Breakaway Three Loan        
Debt Instrument [Line Items]        
Term loan amount | € 590.5 590.5    
EUR 729.9 Million Breakaway Four Loan        
Debt Instrument [Line Items]        
Term loan amount | € 729.9 729.9    
EUR 710.8 Million Seahawk 1 Term Loan        
Debt Instrument [Line Items]        
Term loan amount | € 710.8 710.8    
EUR 748.7 Million Seahawk 2 Term Loan        
Debt Instrument [Line Items]        
Term loan amount | € € 748.7 € 748.7    
Marina Newbuild Loan        
Debt Instrument [Line Items]        
Net unamortized premium     0.1  
Riviera Newbuild Loan        
Debt Instrument [Line Items]        
Net unamortized premium     $ 0.1 $ 0.2