Earnings (loss) per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions |
3 Months Ended |
6 Months Ended |
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
| Numerator: |
|
|
|
|
| Net (loss) earnings from continuing operations |
$ (16.4)
|
$ (7.2)
|
$ 25.5
|
$ 32.8
|
| Less: net earnings allocated to participating securities |
(0.3)
|
(0.3)
|
(0.6)
|
(0.5)
|
| Net (loss) earnings from continuing operations available to common stockholders |
(16.7)
|
(7.5)
|
24.9
|
32.3
|
| Net earnings (loss) from discontinued operations |
72.6
|
3.9
|
(182.8)
|
(2.1)
|
| Net earnings (loss) available to common stockholders |
$ 55.9
|
$ (3.6)
|
$ (157.9)
|
$ 30.2
|
| Denominator (in thousands): |
|
|
|
|
| Weighted-average common shares outstanding, shares for basic earnings per share (in shares) |
34,020
|
33,915
|
33,997
|
33,903
|
| Weighted-average awards outstanding (in shares) |
58
|
0
|
48
|
0
|
| Shares for diluted earnings per share (in shares) |
34,078
|
33,915
|
34,045
|
33,903
|
| Basic net earnings from continuing operations per common share (in dollars per share) |
$ (0.49)
|
$ (0.22)
|
$ 0.73
|
$ 0.95
|
| Basic net loss from discontinued operations per common share (in dollars per share) |
2.13
|
0.11
|
(5.38)
|
(0.06)
|
| Basic net (loss) earnings per common share (in dollars per share) |
1.64
|
(0.11)
|
(4.65)
|
0.89
|
| Diluted net earnings from continuing operations per common share (in dollars per share) |
(0.49)
|
(0.22)
|
0.73
|
0.94
|
| Diluted net loss from discontinued operations per common share (in dollars per share) |
2.12
|
0.11
|
(5.38)
|
(0.06)
|
| Diluted net (loss) earnings per common share (in dollars per share) |
$ 1.63
|
$ (0.11)
|
$ (4.65)
|
$ 0.88
|
| Participating securities (in shares) |
432
|
411
|
439
|
412
|
| Weighted anti-dilutive awards outstanding (in shares) |
1,171
|
1,255
|
1,225
|
1,265
|