v2.3.0.11
Fair Value of Financial Instruments (Fair Value of Derivative Instruments Effect of Changes in Fair Value on Statements of Operations) (Details) (USD $)
|
|
|
Financial instruments owned, at fair value |
$ 2,731,629,000 |
|
$ 1,603,139,000 |
|
Financial instruments sold, not yet purchased, at fair value |
1,896,634,000 |
|
1,311,324,000 |
|
Long listed equity option contracts |
1,200,000 |
|
200,000 |
|
Short listed equity option contracts |
1,300,000 |
|
300,000 |
|
Derivative Instruments Designated as Hedging Instruments [Member] | Foreign Currency Forward Contracts [Member]
|
|
|
|
|
Financial instruments owned, at fair value |
3,000,000 |
|
4,600,000 |
|
Derivative Instruments Not Designated as Hedging Instruments [Member]
|
|
|
|
|
Financial instruments owned, at fair value |
270,400,000 |
|
75,700,000 |
|
Financial instruments sold, not yet purchased, at fair value |
247,300,000 |
|
86,000,000 |
|
Derivative Instruments Not Designated as Hedging Instruments [Member] | Embedded Conversion Derivative [Member]
|
|
|
|
|
Financial instruments sold, not yet purchased, at fair value |
11,700,000 |
|
33,900,000 |
|
Derivative Instruments Not Designated as Hedging Instruments [Member] | Total Return Swap [Member]
|
|
|
|
|
Financial instruments sold, not yet purchased, at fair value |
18,200,000 |
[1] |
11,500,000 |
[1] |
Derivative Instruments Not Designated as Hedging Instruments [Member] | Listed Equity Options [Member]
|
|
|
|
|
Financial instruments owned, at fair value |
258,700,000 |
[2] |
41,800,000 |
[2] |
Financial instruments sold, not yet purchased, at fair value |
217,400,000 |
[2] |
40,600,000 |
[2] |
Derivative Instruments Not Designated as Hedging Instruments [Member] | Purchased Call Options [Member]
|
|
|
|
|
Financial instruments owned, at fair value |
$ 11,700,000 |
[2] |
$ 33,900,000 |
[2] |
|
|
X |
- Definition+ Details
Name: |
kcg_LongListedEquityOptionContracts |
Namespace Prefix: |
kcg |
Data Type: |
xbrli:monetaryItemType |
Balance Type: |
debit |
Period Type: |
instant |
|
X |
- Definition+ Details
Name: |
kcg_ShortListedEquityOptionContracts |
Namespace Prefix: |
kcg |
Data Type: |
xbrli:monetaryItemType |
Balance Type: |
debit |
Period Type: |
instant |
|
X |
- Definition
The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-BRD
-Chapter 4
-Paragraph 80
-Subparagraph Exhibit 4-3
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-BRD
-Chapter 4
-Paragraph 38, 40
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6475986&loc=d3e42546-110969
+ Details
Name: |
us-gaap_FinancialInstrumentsOwnedAtFairValue |
Namespace Prefix: |
us-gaap |
Data Type: |
xbrli:monetaryItemType |
Balance Type: |
debit |
Period Type: |
instant |
|
X |
- Definition
Carrying value as of the balance sheet date of obligations incurred from short sales.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-BRD
-Chapter 7
-Paragraph 40
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6475908&loc=d3e42429-110968
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-BRD
-Chapter 4
-Paragraph 38
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-BRD
-Chapter 7
-Paragraph 19
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Audit and Accounting Guide (AAG)
-Number AAG-BRD
-Chapter 7
-Paragraph 2
-IssueDate 2006-05-01
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
+ Details
Name: |
us-gaap_FinancialInstrumentsSoldNotYetPurchasedAtFairValue |
Namespace Prefix: |
us-gaap |
Data Type: |
xbrli:monetaryItemType |
Balance Type: |
credit |
Period Type: |
instant |
|
|