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DISCONTINUED OPERATIONS - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2020
Jun. 30, 2019
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Feb. 06, 2018
Sep. 30, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Claims dispute settlement related to PPC divestiture     $ 11,000,000        
Claims dispute settlement related to PPC divestiture, net of tax     7,646,000        
Payment of claims dispute settlement   $ 9,500,000          
Plastics              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Consideration after sale adjustments           $ 465,000,000  
Consideration           $ 465,000,000  
Installation Services              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Revenue $ 0   $ 0 $ 0 $ 0    
Clopay Services Corporation              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Environmental exit costs, costs accrued to date             $ 5,700,000