Quarterly report pursuant to Section 13 or 15(d)

Plant Closure Expenses (Details)

v3.10.0.1
Plant Closure Expenses (Details)
$ in Millions
3 Months Ended
Mar. 31, 2018
position
Dec. 31, 2017
employee
Sep. 30, 2017
Sep. 30, 2017
manufacturing_facility
Mar. 31, 2017
position
Sep. 30, 2018
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Number of positions eliminated | position 70       40  
Estimated pre-tax charges closure-related expenses | $           $ 0.4
Wood Flooring            
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Number of manufacturing facilities ceasing operations     2 2    
Number of positions eliminated | employee   300