Rendering

Component: (Network and Table)
Network
2403404 - Disclosure - Fair Value - Level 3 Financial Assets (Details)
(http://www.kcg.com/role/FairValueLevel3FinancialAssetsDetails)
TableFair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001569391 (http://www.sec.gov/CIK)
Asset Class [Axis]Receivable from sold investment
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
 
 
Balance at beginning of period
5,789,000  
0  
Realized gains(losses) during period
0  
0  
Unrealized gains (losses) during the period
980,000  
0  
Purchases
0  
0  
Sales
0  
0  
Settlements
(3,923,000) 
0  
Issuances
0  
5,789,000  
Transfers in or (out) of Level 3
0  
0  
Balance at end of period
2,846,000  
 
5,789,000