Quarterly report pursuant to Section 13 or 15(d)

Divestiture (Details)

v3.20.2
Divestiture (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 26, 2020
USD ($)
Feb. 26, 2020
USD ($)
Sep. 30, 2020
USD ($)
Mar. 31, 2020
USD ($)
Sep. 30, 2019
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2019
USD ($)
Jan. 28, 2020
agreement
Schedule of Business Divestitures, by Divestiture [Line Items]                
Loss on sale of a business entity and certain assets     $ 0   $ 0 $ (8,214) $ 0  
Loss on sale of business     0   $ 0 8,214 $ 0  
Prime Turbines                
Schedule of Business Divestitures, by Divestiture [Line Items]                
Number of sale agreements | agreement               2
Proceeds from sale of business   $ 20,000            
Note receivable   $ 8,300            
Loss on sale of a business entity and certain assets       $ (7,500)        
Loss on sale of business       $ 7,500        
CT Aerospace                
Schedule of Business Divestitures, by Divestiture [Line Items]                
Proceeds from sale of business $ 6,900              
Loss on sale of a business entity and certain assets     (678)          
Loss on sale of business     678          
Legacy Turbines                
Schedule of Business Divestitures, by Divestiture [Line Items]                
Note receivable, net     6,700     6,700    
Other assets | PTB                
Schedule of Business Divestitures, by Divestiture [Line Items]                
Note receivable     5,100     5,100    
Other assets | Legacy Turbines                
Schedule of Business Divestitures, by Divestiture [Line Items]                
Variable discount     275     275    
Other current assets | PTB                
Schedule of Business Divestitures, by Divestiture [Line Items]                
Note receivable     $ 1,400     $ 1,400