Derivatives - Forward Notional Contracts (Details) $ in Millions	Dec. 31, 2020 USD ($) DerivativeInstrument	Dec. 31, 2019 USD ($)
Designated as hedging instrument | Foreign currency forward contracts | Derivatives designated as cash flow hedges
Derivative [Line Items]
Average number of contracts entered into per month | DerivativeInstrument	150
Designated as hedging instrument | Contract One | Derivatives designated as cash flow hedges
Derivative [Line Items]
Aggregate notional amount of derivative	$ 168.2
Designated as hedging instrument | Contract Two | Derivatives designated as cash flow hedges
Derivative [Line Items]
Aggregate notional amount of derivative		$ 212.5
Not designated as hedging instrument | Foreign currency forward contracts
Derivative [Line Items]
Average number of contracts entered into per month | DerivativeInstrument	20
Not designated as hedging instrument | Contract One
Derivative [Line Items]
Aggregate notional amount of derivative	$ 74.8
Not designated as hedging instrument | Contract Two
Derivative [Line Items]
Aggregate notional amount of derivative		$ 65.0