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Derivative Instruments and Hedging Activities Interest Rate Sensitive Assets/Liabilities (Details) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Derivatives, Fair Value [Line Items] | ||
| Available-for-sale Securities, Interest-only | $ 72,339 | $ 77,342 |
| Agency To-be-Announced Securities, Notional Amount, Long | 2,150,000 | 1,753,000 |
| Agency To-be-Announced Securities, Notional Amount, Short | 800,000 | |
| Agency To-be-Announced Securities, Fair Value, Asset | 2,237 | 1,917 |
| Agency To-be-Announced Securities, Fair Value, Liability | (156) | (239) |
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Derivative Financial Instruments, Assets [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Asset, Notional Amount | 10,056,328 | 9,768,656 |
| Derivative Asset, Fair Value, Net | 511,749 | 462,080 |
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Forward Purchase Commitment [Member] | Derivative Financial Instruments, Assets [Member]
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| Derivatives, Fair Value [Line Items] | ||
| Derivative Asset, Notional Amount | 8,745 | 56,865 |
| Derivative Asset, Fair Value, Net | $ 110 | $ 234 |
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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
Fair value of the gross assets less the gross liabilities of a derivative asset or group of derivative assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total monetary amount specified by the derivative asset(s). Expressed as an absolute value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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