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Derivative Instruments and Hedging Activities Interest Rate Sensitive Assets/Liabilities (Details) (USD $)
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Dec. 31, 2011
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Dec. 31, 2010
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| Derivatives, Fair Value [Line Items] | ||
| Available-for-sale Securities, Interest-only | $ 48,400,000 | $ 18,400,000 |
| Trading Securities | 1,003,301,000 | 199,523,000 |
| Derivative Asset, Fair Value, Gross Asset | 251,856,000 | 38,109,000 |
| Derivative Liability, Fair Value, Gross Liability | 49,080,000 | 158,000 |
| Agency To-be-Announced Securities, Notional Amount, Long | 275,000,000 | |
| Agency To-be-Announced Securities, Notional Amount, Short | 850,000,000 | |
| Agency To-be-Announced Securities, Fair Value, Asset | 2,700,000 | |
| Agency To-be-Announced Securities, Fair Value, Liability | (5,700,000) | |
| Forward Sale Commitment, Notional Amount | $ 5,200,000 |
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- Definition
Fair value of Agency To-be-Announced securities ("TBAs"), which are forward derivative contracts consisting of pools of mortgages with specific investment terms to be issued by GSEs at a future date, classified as a derviative asset as of the balance sheet date. No definition available.
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- Definition
Fair value of Agency To-be-Announced securities ("TBAs"), which are forward derivative contracts consisting of pools of mortgages with specific investment terms to be issued by GSEs at a future date, classified as a derviative liability as of the balance sheet date. No definition available.
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- Definition
Notional amount of Agency To-be-Announced securities ("TBAs"), which are forward derivative contracts consisting of pools of mortgages with specific investment terms to be issued by GSEs at a future date, with a long position as of the balance sheet date. No definition available.
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- Definition
Notional amount of Agency To-be-Announced securities ("TBAs"), which are forward derivative contracts consisting of pools of mortgages with specific investment terms to be issued by GSEs at a future date, with a short position as of the balance sheet date. No definition available.
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- Definition
This item represents investments in interest-only debt and equity securities in place to economically hedge investment securities, which are categorized neither as held-to-maturity nor trading. No definition available.
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- Definition
Notional amount of Forward sales commitments, which are derivative instruments whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate. The Company is exposed to interest rate risk on mortgage loans from time of purchase until the mortgage loan is sold. Changes in interest rates impact the market price for the mortgage loans; as market interest rates decline, the value of mortgage loans held-for-sale increases and vice versa. To mitigate the impact of this risk, the Company has entered into a Forward AAA Securities Agreement with Barclays Bank pursuant to a proposed securitization transaction. No definition available.
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- Definition
Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
The total of financial instruments that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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