Condensed Statement of Changes in Stockholders' Equity Statement - USD ($) $ in Millions	Total	Class A [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Stockholders' Equity Attributable to Parent at Dec. 31, 2020	$ 856.5
Common Stock, Shares, Outstanding at Dec. 31, 2020			105,542,162
Common Stock, Value, Outstanding at Dec. 31, 2020			$ 1.1
Additional Paid in Capital, Common Stock at Dec. 31, 2020				$ 1,139.8
Treasury Stock, Value at Dec. 31, 2020						$ (2,456.7)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Dec. 31, 2020							$ (154.1)
Retained Earnings (Accumulated Deficit) at Dec. 31, 2020					$ 2,326.4
Common Stock, Dividends, Per Share, Declared	$ 0.01
Net Income (Loss) Attributable to Parent	$ (171.6)				(171.6)
Dividends, Common Stock, Cash	(1.1)				(1.1)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			30,024
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture			$ 0.0
Stock Issued During Period, Value, Restricted Stock Award, Gross	6.5			6.5
Shares Issued, Shares, Share-based Payment Arrangement, Forfeited			(94,820)
Shares Granted, Value, Share-based Payment Arrangement, Forfeited			$ 0.0
Payment, Tax Withholding, Share-based Payment Arrangement	(3.3)		$ 0.0	3.3
Stock Issued During Period, Shares, Employee Stock Purchase Plans			29,500
Stock Issued During Period, Value, Employee Stock Purchase Plan	1.4			1.4
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			(77,954)
Other Comprehensive Income (Loss), Net of Tax	4.1						4.1
Stockholders' Equity Attributable to Parent at Apr. 01, 2021	692.5
Common Stock, Shares, Outstanding at Apr. 01, 2021			105,438,110
Additional Paid in Capital, Common Stock at Apr. 01, 2021				1,144.4
Treasury Stock, Value at Apr. 01, 2021						(2,456.7)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Apr. 01, 2021							(150.0)
Retained Earnings (Accumulated Deficit) at Apr. 01, 2021					2,153.7
Common Stock, Value, Outstanding at Apr. 01, 2021			$ 1.1
Stockholders' Equity Attributable to Parent at Dec. 31, 2021	448.3
Common Stock, Shares, Outstanding at Dec. 31, 2021			105,037,845
Common Stock, Value, Outstanding at Dec. 31, 2021		$ 1.1	$ 1.1
Additional Paid in Capital, Common Stock at Dec. 31, 2021	1,146.2			1,146.2
Treasury Stock, Value at Dec. 31, 2021	2,456.7					(2,456.7)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Dec. 31, 2021	(23.7)						(23.7)
Retained Earnings (Accumulated Deficit) at Dec. 31, 2021	$ 1,781.4				1,781.4
Common Stock, Dividends, Per Share, Declared	$ 0.01
Net Income (Loss) Attributable to Parent	$ (52.8)				(52.8)
Dividends, Common Stock, Cash	(1.1)				(1.1)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			152,306
Shares Granted, Value, Share-based Payment Arrangement, before Forfeiture			$ 0.0
Stock Issued During Period, Value, Restricted Stock Award, Gross	8.3			8.3
Shares Issued, Shares, Share-based Payment Arrangement, Forfeited			(82,611)
Shares Granted, Value, Share-based Payment Arrangement, Forfeited			$ 0.0
Payment, Tax Withholding, Share-based Payment Arrangement	(5.3)		$ 0.0	5.3
Stock Issued During Period, Shares, Employee Stock Purchase Plans			40,078
Stock Issued During Period, Value, Employee Stock Purchase Plan	1.9			1.9
Supplemental Retirement Plan Shares Issued			0
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			(111,874)
Treasury Stock, Value, Acquired, Cost Method	0.0					0.0
Other Comprehensive Income (Loss), Net of Tax	(17.6)						(17.6)
Stockholders' Equity Attributable to Parent at Mar. 31, 2022	381.7
Common Stock, Shares, Outstanding at Mar. 31, 2022			105,035,744
Additional Paid in Capital, Common Stock at Mar. 31, 2022	1,151.1			1,151.1
Treasury Stock, Value at Mar. 31, 2022	2,456.7					$ (2,456.7)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Mar. 31, 2022	(41.3)						$ (41.3)
Retained Earnings (Accumulated Deficit) at Mar. 31, 2022	1,727.5				$ 1,727.5
Common Stock, Value, Outstanding at Mar. 31, 2022			$ 1.1
Supplemental Retirement Plan Shares Issued Value	$ 0.0			$ 0.0