Annual report pursuant to Section 13 and 15(d)

Earnings Per Share of Common Stock (Details)

v3.8.0.1
Earnings Per Share of Common Stock (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Apr. 01, 2016
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Numerator                        
Income from continuing operations   $ (20.7) $ (18.7) $ 5.4 $ (7.8) $ (6.3) $ 9.3 $ 7.0 $ (2.5) $ (41.8) $ 7.5 $ (10.3)
Gain on disposal of discontinued operations, net of tax                   0.0 1.7 39.9
Net (loss) income                   $ (41.8) $ 9.2 $ 29.6
Denominator                        
Weighted average number of common shares outstanding (in shares)                   26,977,475 27,773,434 27,738,779
Weighted average number of vested shares not yet issued (in shares)                   136,504 91,903 0
Weighted average number of common shares outstanding - Basic (in shares)                   27,113,979 27,865,337 27,738,779
Dilutive stock-based compensation awards outstanding (in shares)                   0 212,147 0
Weighted average number of common shares outstanding - Diluted (in shares)                   27,113,979 28,077,484 27,738,779
Stock Compensation Plan                        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                        
Securities excluded from computation of earnings per share (in shares)                   743,678 201,994 0
Performance Share Awards (PSAs)                        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                        
Securities excluded from computation of earnings per share (in shares)                   849,483 646,698 0
Common Stock                        
Denominator                        
Issuance of common stock at separation (in shares) 27,738,779                   27,738,779