Condensed Consolidated Statements of Equity (UNAUDITED) - USD ($) $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-in-Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2017	$ 149.4	$ 0.3	$ (0.9)	$ 205.7	$ 8.9	$ (64.6)
Balance (in shares) at Dec. 31, 2017		33,800,000	0
Net (loss) earnings	7.7	$ 0.0	$ 0.0	0.0	7.7	0.0
Other comprehensive income	1.2	0.0	0.0	0.0	0.0	1.2
Adoption of ASU 2014-09	0.9	0.0	0.0	0.0	0.9	0.0
Share-based compensation	1.8	0.0	0.0	1.8	0.0	0.0
Issuance of share-based awards, net of withholdings and other	0.6	$ 0.0	$ (0.8)	1.4	0.0	0.0
Issuance of share-based awards, net of withholdings and other (in shares)		200,000	100,000
Balance at Mar. 31, 2018	161.6	$ 0.3	$ (1.7)	208.9	17.5	(63.4)
Balance (in shares) at Mar. 31, 2018		34,000,000.0	100,000
Balance at Dec. 31, 2018	$ 226.0	$ 0.3	$ (2.4)	216.5	94.3	(82.7)
Balance (in shares) at Dec. 31, 2018	34,200,000	34,200,000	100,000
Net (loss) earnings	$ (1.4)	$ 0.0	$ 0.0	0.0	(1.4)	0.0
Other comprehensive income	2.6	0.0	0.0	0.0	0.0	2.6
Share-based compensation	1.5	0.0	0.0	1.5	0.0	0.0
Issuance of share-based awards, net of withholdings and other	(1.2)	$ 0.0	$ (1.2)	0.0	0.0	0.0
Issuance of share-based awards, net of withholdings and other (in shares)		200,000	100,000
Balance at Mar. 31, 2019	$ 227.5	$ 0.3	$ (3.6)	$ 218.0	$ 92.9	$ (80.1)
Balance (in shares) at Mar. 31, 2019	34,400,000	34,400,000	200,000