XML 57 R47.htm IDEA: XBRL DOCUMENT v3.8.0.1
Regulatory Requirements Regulatory (Tables)
 3 Months Ended
Mar. 31, 2018
Regulatory [Abstract]  
Computation of Net Capital under Securities and Exchange Commission Regulation [Table Text Block]
Subsidiary
 
Net Capital
 
Minimum Net Capital Requirement
 
Excess Net Capital
 
 
(dollars in millions)
Cowen and Company
 
$
105.5

 
$
1.0

 
$
104.5

Cowen Execution
 
$
109.8

 
$
1.7

 
$
108.1

ATM Execution
 
$
2.3

 
$
0.3

 
$
2.0

Cowen Prime
 
$
15.5

 
$
0.3

 
$
15.2

Westminster
 
$
14.0

 
$
0.3

 
$
13.7

Ramius UK
 
$
0.2

 
$
0.1

 
$
0.1

Cowen International Ltd
 
$
14.2

 
$
8.4

 
$
5.8

Cowen Execution Ltd
 
$
5.1

 
$
3.4

 
$
1.7