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Derivative Financial Instruments (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2020 | Dec. 31, 2019
Junior Subordinated Notes, Total | $ 45,126 | $ 44,384
Derivative Asset, Notional Amount | 1,208,025 | 885,469
Short-term Debt, Total | 866,500 | 541,500
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net, Total | 200 |
Derivative Instruments, Gain (Loss) Reclassification from accumulated other comprehensive income (loss) to Income, Estimated Net Amount to be Transferred | 600 |
Not Designated as Hedging Instrument [Member] |  |
Derivative Asset, Notional Amount | 18,000 | 18,000
Designated as Hedging Instrument [Member] |  |
Derivative Asset, Notional Amount | 323,500 | 326,000
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Derivative Asset, Notional Amount | 866,500 | 541,500
Interest Rate Swap [Member] |  |
Derivative Asset, Notional Amount | 323,500 | 326,000
Interest Rate Swap [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Asset, Notional Amount | 18,000 | 18,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] |  |
Derivative Asset, Notional Amount | 866,500 | 541,500
Floating Rate Junior Subordinated Debentures [Member] |  |
Derivative, Amount of Hedged Item | 18,000 | 18,000
Junior Subordinated Notes, Total | $ 61,900 | $ 61,900

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