Annual report pursuant to Section 13 and 15(d)

Income Taxes (Textuals) (Details)

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Income Taxes (Textuals) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2017
Dec. 31, 2018
Schedule Of Income Taxes [Line Items]      
Unrecognized tax benefits $ 732 $ 532 $ 532
Tax benefit connection with the reversal of substantially all of valuation allowance on net operating loss carryforwards $ 35,700    
Income tax expense due to reduction of deferred tax liabilities   $ 7,400  
Tax Year 2017      
Schedule Of Income Taxes [Line Items]      
U.S. corporate income tax rate   35.00%  
Tax Year 2018      
Schedule Of Income Taxes [Line Items]      
U.S. corporate income tax rate 21.00%    
Prestige Cruises International Inc      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 145,000   177,500
U.S. net operating loss carryforwards, expiration year 2031    
U.S.      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 238,800   278,300
U.S. net operating loss carryforwards, expiration year 2031    
NORWAY      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 13,300   13,900
State and Local Jurisdiction      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 3,400   4,800
U.S. net operating loss carryforwards, expiration year 2025    
U.K.      
Schedule Of Income Taxes [Line Items]      
Net operating loss carryforwards $ 5,500   $ 7,500
Minimum | U.S.      
Schedule Of Income Taxes [Line Items]      
U.S. net operating loss carryforwards, expiration year 2025    
Maximum | U.S.      
Schedule Of Income Taxes [Line Items]      
U.S. net operating loss carryforwards, expiration year 2035