Regulatory Requirements Regulatory (Tables)

12 Months Ended

Dec. 31, 2020

Regulatory [Abstract]

Computation of Net Capital under Securities and Exchange Commission Regulation

As of December 31, 2020, these regulated broker-dealers had regulatory net capital or financial resources, regulatory net capital requirements or minimum FCA or SFC requirement and excess as follows:

Subsidiary	Net Capital		Minimum Net Capital Requirement		Excess Net Capital
	(dollars in thousands)
Cowen and Company	$	291,803	$	3,594	$	288,209
ATM Execution	$	3,857	$	250	$	3,607
Cowen Prime	$	18,553	$	250	$	18,303
Westminster	$	29,330	$	250	$	29,080
Cowen International Ltd	$	29,511	$	22,699	$	6,812
Cowen Execution Ltd	$	12,188	$	3,331	$	8,857
Cowen Asia	$	2,030	$	387	$	1,643