Derivative Instruments and Hedging Activities Interest Spread on Interest Rate Swaps (Details) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2017 |
Sep. 30, 2016 |
Sep. 30, 2017 |
Sep. 30, 2016 |
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| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Average Notional Amount | $ 18,317,731,000 | $ 20,642,679,000 | $ 17,799,927,000 | $ 22,701,140,000 |
| Interest Rate Swap [Member] | ||||
| Derivative Instruments, Gain (Loss) [Line Items] | ||||
| Interest Expense on Interest Rate Swap and Swaption Agreements | $ 389,000 | $ 4,294,000 | $ 10,867,000 | $ 18,140,000 |
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- Definition Average notional amount during the period presented specified by the derivative(s). No definition available.
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- Definition Net interest spread on interest rate swap and swaption agreements, at fair value. No definition available.
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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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