Annual report pursuant to Section 13 and 15(d)

Property and Equipment, Net (Details)

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Property and Equipment, Net (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 17,118,949 $ 15,525,164
Less: accumulated depreciation (3,983,612) (3,405,911)
Property and equipment, net 13,135,337 12,119,253
Ships    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 14,154,578 13,032,555
Ships improvements    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 1,865,272 1,407,989
Ships under construction    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 387,749 491,632
Land and land improvements    
Property Plant And Equipment [Line Items]    
Property and equipment, gross 38,375 34,936
Other property and equipment    
Property Plant And Equipment [Line Items]    
Property and equipment, gross $ 672,975 $ 558,052