Condensed Consolidated Statements of Shareholders' Equity (Deficit) (Unaudited) - USD ($) $ in Millions	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Beginning balance, value at Dec. 31, 2020		$ 1,059.6	$ (1,065.0)	$ (24.9)	$ 22.7	$ (7.6)
Beginning balance, shares at Dec. 31, 2020	28,097			2,927
Net income (loss)			9.5		(0.4)	9.1
Ending balance, value at Jun. 30, 2021		1,059.6	(1,055.5)	$ (24.9)	22.3	1.5
Ending balance, shares at Jun. 30, 2021	28,097			2,927
Beginning balance, value at Dec. 31, 2021		1,073.0	(1,036.0)	$ (24.9)		12.1
Beginning balance, shares at Dec. 31, 2021	28,097			2,927
Net income (loss)			(1.5)			(1.5)
Ending balance, value at Jun. 30, 2022		$ 1,073.0	$ (1,037.5)	$ (24.9)		$ 10.6
Ending balance, shares at Jun. 30, 2022	28,097			2,927