Business Segment Information and Geographic Data (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Schedule of Net Revenue, Operating Loss from Continuing Operations and Assets by Segment

	Years Ended December 31,
	2021			2020
	(In millions)
Operating income (loss) from continuing operations
Asset management business	$	(2.0	)	$	(5.2	)
Total segment operating loss		(2.0	)		(5.2	)
Corporate and unallocated		(4.2	)		(1.5	)
Total operating loss		(6.2	)		(6.7	)
Interest expense		(2.0	)		(2.6	)
Gain on Chapter 11 reorganization		20.4			(1.9	)
Bank Loan forgiveness		0.4			(8.5	)
Realized losses on investments		—			(1.9	)
Defined benefit plan adjustment		—			(8.5	)
Other income (expense), net		0.4			0.1
Income (loss) from continuing operations before income taxes	$	13.0		$	(19.6	)

	December 31,		December 31,
	2021		2020
	(In millions)
Assets
Asset management business	$	13.2	$	15.8
Total segment assets		13.2		15.8
Corporate and unallocated		4.0		1.2
Non-current assets of discontinued operations		—		8.4
Total consolidated assets	$	17.2	$	25.4