Derivatives - Forward Notional Contracts (Details) - Foreign currency forward contracts $ in Millions	Mar. 31, 2020 USD ($) DerivativeInstrument	Dec. 31, 2019 USD ($)
Designated as hedging instrument | Derivatives designated as cash flow hedges
Derivative [Line Items]
Average number of contracts entered into per month | DerivativeInstrument	150
Notional amount of derivative | $	$ 173.2	$ 212.5
Not designated as hedging instrument | Fair Value Hedging
Derivative [Line Items]
Average number of contracts entered into per month | DerivativeInstrument	20
Notional amount of derivative | $	$ 65.2	$ 65.0