Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Change in Accounting Principle Cash Flow Impact (Details)

v3.7.0.1
Summary of Significant Accounting Policies - Change in Accounting Principle Cash Flow Impact (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Net income (loss) $ 9.2 $ 29.6 $ (30.5)
Deferred income taxes (3.7) (15.0) 0.3
Wood Flooring      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
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]      
Net income (loss) 9.2 29.6 (30.5)
Changes in operating assets and liabilities (14.8) 44.4 (67.4)
Deferred income taxes (5.2) (56.0) 30.4
Wood Flooring | Inventory Valuation Adjustment - LIFO to FIFO | As Computed under LIFO      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Net income (loss) 1.5 48.9 (37.2)
Changes in operating assets and liabilities (6.8) 12.5 (56.3)
Deferred income taxes (5.5) (43.4) 26.0
Wood Flooring | Inventory Valuation Adjustment - LIFO to FIFO | Effect of Change      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Net income (loss) 7.7 (19.3) 6.7
Changes in operating assets and liabilities (8.0) 31.9 (11.1)
Deferred income taxes $ 0.3 $ (12.6) $ 4.4