Derivative Financial Instruments - Narrative (Details) (USD $)
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9 Months Ended | 12 Months Ended |
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Sep. 30, 2012
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Dec. 31, 2011
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Derivitive Financial Instruments [Line Items] | ||
Margin Balance | $ 264,969 | $ 285,000 |
Type of Derivative Instrument | Eurodollar Futures Contract | Eurodollar Futures Contract |
Underlying Risk | Interest Rate Risk | Interest Rate Risk |
[JuniorSubordinatedNotesMember]
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Derivitive Financial Instruments [Line Items] | ||
Description of Objective | The Company’s Eurodollar futures contracts with a notional amount ranging between $21.0 million and $26.0 million are used to attempt to achieve a fixed interest rate related to its junior subordinated notes. The junior subordinated notes had a 7.86% fixed-rate of interest until December 15, 2010, and thereafter, through maturity in 2035, the rate will float at a spread of 3.50% over the prevailing three-month LIBOR rate. The Eurodollar futures contracts serve to effectively lock in a fixed LIBOR rate for a specified period of time. | |
Locked-In LIBOR Rate | 0.55% | |
Effective Rate of Hedged Item | 4.05% | |
Longest Remaining Contract | March 14, 2016 | |
[RepurchaseAgreementsHedgedMember]
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Derivitive Financial Instruments [Line Items] | ||
Description of Objective | The Company also used Eurodollar futures contracts with a notional amount ranging between $30.0 million and $50.0 million to attempt to achieve a fixed interest rate related to a portion of its repurchase agreement obligations. | |
Locked-In LIBOR Rate | 0.34% | |
Longest Remaining Contract | December 16, 2013 |