Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Change in Accounting Principle Income Statement Impact (Details)

v3.7.0.1
Summary of Significant Accounting Policies - Change in Accounting Principle Income Statement Impact (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Cost of goods sold                 $ 963.1 $ 993.0 $ 1,010.7
Income tax expense (benefit)                 4.1 (7.3) 7.9
Net earnings (loss) from continuing operations $ (6.3) $ 9.3 $ 7.0 $ (2.5) $ (13.1) $ 2.9 $ 5.0 $ (5.1) 7.5 (10.3) 9.5
Net income (loss)                 9.2 29.6 (30.5)
Wood Flooring                      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Cost of goods sold                   993.0 1,010.7
Income tax expense (benefit)                   (7.3) 7.9
Net earnings (loss) from continuing operations                   (10.3) 9.5
Net income (loss)                   29.6 (30.5)
Wood Flooring | Inventory Valuation Adjustment - LIFO to FIFO                      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Cost of goods sold                 963.1    
Income tax expense (benefit)                 4.1    
Net earnings (loss) from continuing operations                 7.5    
Net income (loss)                 9.2 29.6 (30.5)
Wood Flooring | Inventory Valuation Adjustment - LIFO to FIFO | As Computed under LIFO                      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Cost of goods sold                 973.4 961.1 1,021.7
Income tax expense (benefit)                 1.5 5.3 3.6
Net earnings (loss) from continuing operations                 (0.2) 9.0 2.8
Net income (loss)                 1.5 48.9 (37.2)
Wood Flooring | Inventory Valuation Adjustment - LIFO to FIFO | Effect of Change                      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]                      
Cost of goods sold                 (10.3) 31.9 (11.0)
Income tax expense (benefit)                 2.6 (12.6) 4.3
Net earnings (loss) from continuing operations                 7.7 (19.3) 6.7
Net income (loss)                 $ 7.7 $ (19.3) $ 6.7