Quarterly report pursuant to Section 13 or 15(d)

Divestiture (Details)

v3.20.1
Divestiture (Details)
$ in Thousands
3 Months Ended
Feb. 26, 2020
USD ($)
Jan. 28, 2020
USD ($)
agreement
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Dec. 31, 2019
USD ($)
Schedule of Business Divestitures, by Divestiture [Line Items]          
Note receivable     $ 7,461,000   $ 0
Loss on sale of business     7,536 $ 0  
Prime Turbines          
Schedule of Business Divestitures, by Divestiture [Line Items]          
Number of sale agreements | agreement   2      
Proceeds from sale of business $ 20,700 $ 20,700      
Proceeds from sale of inventory assets   $ 8,500      
Note receivable $ 8,500        
Loss on sale of business     7,500    
Other assets | PTB          
Schedule of Business Divestitures, by Divestiture [Line Items]          
Note receivable     6,000    
Other current assets | PTB          
Schedule of Business Divestitures, by Divestiture [Line Items]          
Note receivable     $ 1,500