XML 92 R76.htm IDEA: XBRL DOCUMENT v3.6.0.2
Earnings Per Share - Reconciliation of the Numerator and Denominator of Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ 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
Numerator:                      
Net (loss) income for basic and diluted earnings per share $ (67.0) $ (22.2) $ (6.6) $ (9.7) $ (13.8) $ (24.5) $ (18.1) $ 11.4 $ (105.5) $ (45.0) $ 46.1
Denominator:                      
Weighted average shares outstanding, basic (in shares)                 44,217,577 44,533,725 45,541,705
Dilutive effect of stock-based awards (in shares)                 0 0 502,438
Weighted average shares outstanding, diluted (in shares)                 44,217,577 44,533,725 46,044,143
Basic (loss) earnings per share (in dollars per share) $ (1.52) $ (0.50) $ (0.15) $ (0.22) $ (0.31) $ (0.55) $ (0.40) $ 0.25 $ (2.39) $ (1.01) $ 1.01
Diluted (loss) earnings per share (in dollars per share) $ (1.52) $ (0.50) $ (0.15) $ (0.22) $ (0.31) $ (0.55) $ (0.40) $ 0.25 $ (2.39) $ (1.01) $ 1.00