XML 169 R45.htm IDEA: XBRL DOCUMENT v3.19.1
Summary of Significant Accounting Policies (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
USD ($)
Vessel
Unit
Subsidiary
Dec. 31, 2017
USD ($)
Vessel
Unit
Subsidiary
Dec. 31, 2016
USD ($)
Vessel
Subsidiary
Significant Accounting Policies [Line Items]      
Allowances for doubtful accounts $ 0 $ 0  
Capitalized interest $ 0 $ 0  
Depreciation method straight-line    
Vessel estimated useful life 30 years    
Period between scheduled regulatory drydockings 5 years    
Forecast Rate Period following charter expiry 4 years    
Future charter rate assumptions charter rates on expiry of existing charters, which are based on forecast charter rates, where relevant, in the four years from the date of the impairment test and a reversion to the historical mean for each vessel thereafter    
Number of vessels tested for impairment | Vessel 19    
Number of vessels on which impairment charge is recognized | Vessel 3 5 6
Vessel impairment charges $ 71,834 $ 87,624 $ 92,422
Deferred tax liability recognized $ 9 $ 17  
Number of banks holding deposits | Unit 8 3  
Number of Reportable Segments | Unit 1    
Property, Plant and Equipment, Net $ 1,112,766 $ 586,520  
Restatement Adjustment [Member] | Accounting Standards Update 2016-15 [Member]      
Significant Accounting Policies [Line Items]      
Effect in net cash provided by operating activities   9,047 533
Effect in net cash used in financing activities   $ 9,047 $ 533
UNITED KINGDOM      
Significant Accounting Policies [Line Items]      
Number of subsidiaries owned by the Company | Subsidiary 1 1 1
Principal rate of corporate income tax 19.00% 19.00% 20.00%
Three Vessel Groups [Member]      
Significant Accounting Policies [Line Items]      
Vessel impairment charges $ 71,834    
Property, Plant and Equipment, Net 165,334    
Property, Plant, and Equipment, Fair Value Disclosure $ 93,500    
Impaired Long-Lived Assets Held and Used, Asset Description Three vessel groups that are held and used    
Impaired Long-Lived Assets Held and Used, Method for Determining Fair Value The estimated fair value, measured on a non - recurring basis, of the Company’s relevant three vessel groups that are held and used is calculated with the assistance of valuation obtained by third party independent ship brokers. Therefore, the Company has categorized the fair value of these vessels as Level II in the fair value hierarchy.    
Series B Preferred Shares [Member]      
Significant Accounting Policies [Line Items]      
Preferred shares dividend rate percentage 8.75%