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Derivative Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2012
Derivative Financial Instruments-Balance Sheet Information | The following table presents the Company’s derivative financial instruments and the amount and location of the fair value recognized in the consolidated balance sheets as of December 31, 2012 and 2011, respectively. DERIVATIVE FINANCIAL INSTRUMENTS-BALANCE SHEET INFORMATION (Dollars in Thousands)
Derivative Financial Instruments Not Designated as Hedging Instruments under FASB ASC 815: |  | Balance Sheet Classification |  | Unrealized Gain / (Loss) as of December 31, 2012 |  |  | Unrealized Gain / (Loss) as of December 31, 2011 |
TBAs |  | Investments-trading |  | $ | 35 |  |  | $ | — |
TBAs |  | Trading securities sold not yet purchased |  |  | (13 | ) |  |  | (16 | )
|  |  |  | $ | 22 |  |  | $ | (16 | )
Derivative Financial Instruments Statement of Operations Information | The following table presents the Company’s derivative financial instruments and the amount and location of the net gain (loss) recognized in the consolidated statement of operations for the years ended December 31, 2012, 2011 and 2010: DERIVATIVE FINANCIAL INSTRUMENTS-STATEMENT OF OPERATIONS INFORMATION (Dollars in Thousands)
Derivative Financial Instruments Not Designated as Hedging Instruments under FASB ASC 815: |  | Income Statement Classification |  | Year Ended December 31, 2012 |  |  | Year Ended December 31, 2011 |  |  | Year Ended December 31, 2010 |
Foreign currency forward contracts |  | Revenues—principal transactions and other income / (loss) |  | $ | 40 |  |  | $ | (662 | ) |  | $ | (2,320 | )
EuroDollar futures contracts |  | Revenues—net trading |  |  | (30 | ) |  |  | (2 | ) |  |  | (212 | )
TBAs |  | Revenues—net trading |  |  | 1,185 |  |  |  | (9,260 | ) |  |  | 2,577 |
|  |  |  | $ | 1,195 |  |  | $ | (9,924 | ) |  | $ | 45 |

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- Definition Tabular disclosure of the location and amount of gains and losses reported in the statement of financial performance, or when applicable, the statement of financial position. For example, (a) gains and losses recognized in the income statement on derivative instruments designated and qualifying as hedging instruments in fair value hedges and related hedged items designated and qualifying in fair value hedges and (b) gains and losses initially recognized in other comprehensive income on derivative instruments designated and qualifying as cash flow hedges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -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 Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph b -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 FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure for other derivative instruments not designated as hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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