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Assets Held for Sale, Discontinued Operations and Disposals - Additional Information (Details) - USD ($)
$ in Thousands
2 Months Ended 6 Months Ended
Jan. 22, 2020
Jun. 07, 2019
Mar. 31, 2020
Mar. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain (Loss) on sale of subsidiary       $ (13,709)
SoLayTec | Discontinued Operations, Disposed of by Sale [Member]        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain (Loss) on sale of subsidiary   $ 1,600    
R2D        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain (Loss) on sale of subsidiary       (2,800)
Tempress        
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Unsecured term loan, principal amount $ 2,250      
Repayment of loan received     $ 500  
Expected pre-tax loss on deconsolidation 10,900      
Previously recorded accumulated foreign currency translation losses recognized $ 7,200      
Forgiven unsecured term loans       500
Remaining repayment of loan received       $ 1,250