Segment Operating Results - (Footnotes) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Segment Reporting Information [Line Items]
Other Revenue, net	$ (6,029)	$ 2,660
Acquisition and Transition Costs	0	7
Total Other Expenses	0	7
Investment Banking [Member]
Segment Reporting Information [Line Items]
Other Revenue, net	(7,467)	2,584
Interest expense on Notes Payable and Line of Credit	4,250	4,570
Acquisition and Transition Costs	0	7
Total Other Expenses	0	7
Investment Management [Member]
Segment Reporting Information [Line Items]
Other Revenue, net	1,438	76
Total Other Expenses	$ 0	$ 0