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Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Derivative assets	$ 804.0	$ 522.4
Counterparty Credit Risk
Derivative [Line Items]
Derivative assets	284.6
Interest Rate Caps
Derivative [Line Items]
Notional amount of derivative	1,400.0
Interest Rate Collars
Derivative [Line Items]
Notional amount of derivative	7,700.0
Foreign currency forward and option contracts
Derivative [Line Items]
Derivative assets	51.5	$ 28.4
Notional amount of derivative	$ 3,200.0

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- Definition

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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