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Derivatives and Hedging Instruments - Other Derivatives (Details) - 12 months ended Dec. 31, 2019 - Interest Rate Swap $ in Millions, $ in Millions	USD ($)	AUD ($)	USD ($)
Derivative [Line Items]
Notional amount		$ 120.0
Unrealized gains (losses) in net earnings	$ (0.3)
Carrying value
Derivative [Line Items]
Derivative instruments			$ 0.3