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Other Assets (Derivative Instruments Narrative) (Details ) $ in Millions | 3 Months Ended
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Mar. 31, 2020 USD ($)
Designated as Hedging Instrument |
Derivative [Line Items] |
Derivative, terminated amount | $ 4,100.0
Swap | Not Designated as Hedging Instrument |
Derivative [Line Items] |
Loss on derivative | 4.3
Realized loss | $ 9.4

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