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
Balance 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 income (loss)			(17.6)			(0.9)	(18.5)
Acquisition of noncontrolling interest of Adara Enterprises, Corp.		(3.0)				(1.6)	(4.6)
Disposition of Adara Asset Management to a related party		8.7					8.7
Pension adjustments, net of tax				20.6			20.6
Balance at Sep. 30, 2020		1,059.6	(1,020.3)		$ (24.9)	23.1	37.5
Balance, shares at Sep. 30, 2020	28,097				2,927
Balance 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 income (loss)			6.7			(0.7)	6.0
Acquisition of noncontrolling interest of Adara Enterprises, Corp.
Disposition of Adara Asset Management to a related party
Pension adjustments, net of tax
Sale of warrants		0.2					0.2
Extinguishment of Stock Purchase Agreement Notes Payable		10.0					10.0
Balance at Sep. 30, 2021		$ 1,069.8	$ (1,058.3)		$ (24.9)	$ 22.0	$ 8.6
Balance, shares at Sep. 30, 2021	28,097				2,927