Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Impairments and (Gain) Loss on Assets Held for Sale - Additional Information (Details)
$ in Thousands
9 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
crane
Sep. 30, 2020
USD ($)
Dec. 31, 2020
crane
Long Lived Assets Held-for-sale [Line Items]      
Impairments of assets $ 22,750    
Gain (loss) on sale of assets $ (45) $ 5  
Held for sale      
Long Lived Assets Held-for-sale [Line Items]      
Number of cranes | crane 1   2
Proceeds from the sale of assets held for sale $ 4,500 $ 1,700  
Proceeds from the sale of assets held for sale net of transaction and other costs 4,400    
Gain (loss) on sale of assets $ 0