Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Stockholders' Equity (Unaudited)

v3.10.0.1
Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)
$ in Millions
Total
Common Stock
Treasury Stock
Net AWI Investment
Additional Paid-in Capital
Accumulated Other Comprehensive (Loss)
(Accumulated Deficit) Retained Earnings
Beginning balance at Dec. 31, 2016 $ 623.5 $ 0.0 $ 0.0 $ 0.0 $ 673.3 $ (59.8) $ 10.0
Beginning balance (in shares) at Dec. 31, 2016   27,895,671 0        
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Net income (loss) (2.4)           (2.4)
Repurchase of common stock (14.4)   $ (14.4)        
Repurchase of common stock (in shares)   (783,618) 783,618        
Stock-based employee compensation, net 1.9   $ 0.1   1.8    
Stock-based employee compensation, net (in shares)   269,593 (6,608)        
Net transfers to AWI (1.5)     (1.5)      
Reclassification of net parent investment to additional paid-in capital 0.0     1.5 (1.5)    
Other comprehensive income (loss) 4.9         4.9  
Ending balance at Jun. 30, 2017 612.0 $ 0.0 $ (14.3) 0.0 673.6 (54.9) 7.6
Ending balance (in shares) at Jun. 30, 2017   27,381,646 777,010        
Beginning balance at Dec. 31, 2017 550.0 $ 0.0 $ (39.9) 0.0 674.2 (52.5) (31.8)
Beginning balance (in shares) at Dec. 31, 2017   25,734,222 2,448,996        
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Cumulative effect of adoption of ASU 2018-02 related to tax reform as of January 1           (12.6)  
Beginning balance at Dec. 31, 2017 550.0 $ 0.0 $ (39.9) 0.0 674.2 (52.5) (31.8)
Beginning balance (in shares) at Dec. 31, 2017   25,734,222 2,448,996        
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Cumulative effect of adoption of ASU 2018-02 related to tax reform as of January 1 0.0         (12.6) 12.6
Net income (loss) 0.1           0.1
Repurchase of common stock (1.0)   $ (1.0)        
Repurchase of common stock (in shares)   (69,353) 69,353        
Stock-based employee compensation, net 2.0   $ 1.2   0.8    
Stock-based employee compensation, net (in shares)   106,571 (66,184)        
Other comprehensive income (loss) 4.8         4.8  
Ending balance at Jun. 30, 2018 551.8 $ 0.0 $ (39.7) $ 0.0 $ 675.0 $ (60.3) (23.2)
Ending balance (in shares) at Jun. 30, 2018   25,771,440 2,452,165        
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Cumulative effect of adoption of ASC 606 new revenue recognition standard as of January 1 | Accounting Standards Update 2014-09 $ (4.1)           $ (4.1)