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Derivative Instruments and Hedging Activities Credit Risk - Counterparty Exposure (Details) (USD $)
In Thousands, unless otherwise specified |
Sep. 30, 2012
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Dec. 31, 2011
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|---|---|---|
| Credit Derivatives [Line Items] | ||
| Derivative Asset, Fair Value, Gross Asset | $ 496,788 | $ 251,856 |
| Derivative Liability, Fair Value, Gross Liability | 132,322 | 49,080 |
| Collateral Securities Repledged, Delivered, or Used | (102,935) | |
| Collateral Already Posted, Aggregate Fair Value | $ 183,417 |
| X | ||||||||||
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- Definition
The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The carrying value as of the balance sheet date of securities received as collateral from a counterparty that were re-pledged, sold, delivered or otherwise reused by the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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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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