Annual report pursuant to Section 13 and 15(d)

Income Taxes (Detail Textuals)

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Income Taxes (Detail Textuals) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Schedule Of Income Taxes [Line Items]      
Unrecognized tax benefits $ 532 $ 532 $ 11,144
Income tax expense due to reduction of deferred tax liabilities   7,400  
Unrecognized tax benefits, reversed $ 0 10,662  
Tax Year 2017      
Schedule Of Income Taxes [Line Items]      
US corporate income tax rate 35.00%    
Tax Year 2018      
Schedule Of Income Taxes [Line Items]      
US corporate income tax rate 21.00%    
Prestige Cruises International Inc      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 177,500 177,800  
U.S. net operating loss carryforwards, expiration year 2023    
U.S.      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 278,300 254,800  
U.S. net operating loss carryforwards, expiration year 2023    
NORWAY      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 13,900 13,900  
State and Local Jurisdiction      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 4,800 8,900  
U.S. net operating loss carryforwards, expiration year 2025 through 2035    
U.K      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 7,500 $ 8,300