Derivative Instruments and Hedging Activities Interest Rate Sensitive Assets/Liabilities (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Derivatives, Fair Value [Line Items] | ||
| Available-for-sale securities, at fair value | $ 13,128,857 | $ 7,825,320 |
| Interest-Only-Strip [Member] | ||
| Derivatives, Fair Value [Line Items] | ||
| Available-for-sale securities, at fair value | $ 71,084 | $ 42,931 |
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Details
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