Quarterly report pursuant to Section 13 or 15(d)

Impairments and (Gain) Loss on Assets Held for Sale - Additional Information (Details)

v3.21.1
Impairments and (Gain) Loss on Assets Held for Sale - Additional Information (Details)
$ in Thousands
3 Months Ended
Jun. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
crane
drydock
Mar. 31, 2020
USD ($)
Long Lived Assets Held-for-sale [Line Items]      
Impairments of assets   $ 22,750  
Number of drydocks | drydock   2  
Gain (loss) on sale of assets   $ 6 $ 5
Held for sale      
Long Lived Assets Held-for-sale [Line Items]      
Number of cranes | crane   3  
Proceeds from the sale of assets held for sale     $ 1,100
Gain (loss) on sale of assets   $ 0  
Held for sale | Shipyard      
Long Lived Assets Held-for-sale [Line Items]      
Impairments of assets   22,800  
Transaction costs   $ 700  
Held for sale | Shipyard | Forecast      
Long Lived Assets Held-for-sale [Line Items]      
Additional loss $ 2,000