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Derivatives Volume of Activity (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2017 USD ($)
Derivative [Line Items] |
Beginning of Period Notional Amount | $ 3,880,000
Notional Amount of Derivative Instruments Added | 1,400,000
Notional Amount of Derivative Instruments Terminated | (735,000)
End of Period Notional Amount | 4,545,000
Forward Contracts [Member] |
Derivative [Line Items] |
Beginning of Period Notional Amount | 2,725,000
End of Period Notional Amount | 2,675,000
Interest Rate Swap | Receive-fixed interest rate swap |
Derivative [Line Items] |
Beginning of Period Notional Amount | 425,000
Notional Amount of Derivative Instruments Added | 0
Notional Amount of Derivative Instruments Terminated | (300,000)
End of Period Notional Amount | 125,000
Interest Rate Swap | Pay-fixed interest rate swap |
Derivative [Line Items] |
Beginning of Period Notional Amount | 3,455,000
Notional Amount of Derivative Instruments Added | 1,400,000
Notional Amount of Derivative Instruments Terminated | (435,000)
End of Period Notional Amount | $ 4,420,000

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- Definition Aggregate notional amount entered into in the period specified by the derivative(s). Expressed as an absolute value. + References No definition available. + Details
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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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