Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions		Total		Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Balance at Dec. 31, 2019		$ 268.6		$ 0.3	$ (4.2)	$ 225.2	$ 131.9	$ (84.6)
Balance (in shares) at Dec. 31, 2019				34.5	0.3
Net (loss) earnings		(25.9)		$ 0.0	$ 0.0	0.0	(25.9)	0.0
Other comprehensive income (loss)		3.8		0.0	0.0	0.0	0.0	3.8
Adoption of ASU 2016-13 | Adoption of ASU 2016-13		(0.5)	[1]	0.0	0.0	0.0	(0.5)	0.0
Share-based compensation		13.6		0.0	0.0	13.6	0.0	0.0
Common stock repurchases		(10.3)		$ 0.0	$ (10.3)	0.0	0.0	0.0
Common stock repurchases, shares				0.0	1.1
Issuance of share-based awards, net of withholdings and other		(1.5)		$ 0.0	$ (1.5)	0.0	0.0	0.0
Issuance of share-based awards, net of withholdings and other (in shares)				0.4	0.2
Balance at Dec. 31, 2020		247.8		$ 0.3	$ (16.0)	238.8	105.5	(80.8)
Balance (in shares) at Dec. 31, 2020				34.9	1.6
Net (loss) earnings		145.9		$ 0.0	$ 0.0	0.0	145.9	0.0
Other comprehensive income (loss)		2.5		0.0	0.0	0.0	0.0	2.5
Adoption of ASU 2016-13 | Adoption of ASU 2016-13	[1]	0.0
Share-based compensation		19.5		0.0	0.0	19.5	0.0	0.0
Common stock repurchases		(32.4)		$ 0.0	$ (32.4)	0.0	0.0	0.0
Common stock repurchases, shares				0.0	1.0
Issuance of share-based awards, net of withholdings and other		(6.3)		$ 0.1	$ (8.7)	2.3	0.0	0.0
Issuance of share-based awards, net of withholdings and other (in shares)				1.0	0.3
Balance at Dec. 31, 2021		$ 377.0		$ 0.4	$ (57.1)	260.6	251.4	(78.3)
Balance (in shares) at Dec. 31, 2021		35.9		35.9	2.9
Net (loss) earnings		$ 102.5		$ 0.0	$ 0.0	0.0	102.5	0.0
Other comprehensive income (loss)		(4.9)		0.0	0.0	0.0	0.0	(4.9)
Adoption of ASU 2016-13 | Adoption of ASU 2016-13	[1]	0.0
Share-based compensation		19.3		0.0	0.0	19.3	0.0	0.0
Common stock repurchases		(152.5)		$ 0.0	$ (152.5)	0.0	0.0	0.0
Common stock repurchases, shares				0.0	4.7
Issuance of share-based awards, net of withholdings and other		(11.9)		$ 0.0	$ (12.2)	0.3	0.0	0.0
Issuance of share-based awards, net of withholdings and other (in shares)				1.0	0.4
Balance at Dec. 31, 2022		$ 329.5		$ 0.4	$ (221.8)	$ 280.2	$ 353.9	$ (83.2)
Balance (in shares) at Dec. 31, 2022		36.9		36.9	8.0

[1] On January 1, 2020, the Company adopted Accounting Standards Update (“ASU”) 2016-13, Financial Instruments - Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments and recorded a $0.5 million cumulative-effect adjustment to retained earnings.