Condensed Consolidated Statements of Shareholders' Equity (Deficit) (Unaudited) - USD ($) $ in Millions	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Total
Beginning balance, value at Dec. 31, 2019		$ 1,053.9	$ (1,002.7)	$ (20.6)	$ (24.9)	$ 25.6	$ 31.3
Balance, shares at Dec. 31, 2019	28,097				2,927
Net loss			(14.3)			(0.7)	(15.0)
Pension adjustments, net of tax				20.6			20.6
Ending balance, value at Jun. 30, 2020		1,053.9	(1,017.0)		$ (24.9)	24.9	36.9
Balance, shares at Jun. 30, 2020	28,097				2,927
Beginning balance, value at Dec. 31, 2020		1,059.6	(1,065.0)		$ (24.9)	22.7	(7.6)
Balance, shares at Dec. 31, 2020	28,097				2,927
Net loss			9.5			(0.4)	9.1
Pension adjustments, net of tax
Ending balance, value at Jun. 30, 2021		$ 1,059.6	$ (1,055.5)		$ (24.9)	$ 22.3	$ 1.5
Balance, shares at Jun. 30, 2021	28,097				2,927