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Vessels, net (Tables)
12 Months Ended
Dec. 31, 2019
Property Plant And Equipment [Abstract]  
Vessels, net

 

Vessel Cost

Accumulated
depreciation

Net book value

Balance as at January 1, 2018

818,180 

(160,512)

$657,668 

Improvements

    277 

 

277 

Depreciation for the period

 

(32,113)

(32,113)

Impairment of vessels

(78,607)

49,802 

(28,805)

Disposals

     (10,927)

 

(10,927)

Balance as at December 31, 2018

$    728,923 

$  (142,823)

$   586,100 

Improvements

19,896 

 

19,896 

Depreciation for the period

 

(29,105)

(29,105)

Balance as at December 31, 2019

$ 748,819       

$  (171,928)   

$   576,891