Hedging Activities, Derivative Instruments and Fair Value Measurements - Balance Sheets (Details) - Derivatives Not Designated as Hedging Instruments - Fair Value - Foreign currency forwards - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Notional amount of derivative	$ 78.3	$ 230.5
Fair Value Other Current Assets
Derivatives, Fair Value [Line Items]
Assets fair value	0.4	2.9
Fair Value Other Assets
Derivatives, Fair Value [Line Items]
Assets fair value	0.0	0.0
Fair Value Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liabilities fair value	0.0	0.0
Fair Value Other Liabilities
Derivatives, Fair Value [Line Items]
Liabilities fair value	0.0	0.0
Notional amount of derivative	100.6	51.2
Fair Value Other Current Assets
Derivatives, Fair Value [Line Items]
Assets fair value	0.0	0.0
Fair Value Other Assets
Derivatives, Fair Value [Line Items]
Assets fair value	0.0	0.0
Fair Value Accrued Liabilities
Derivatives, Fair Value [Line Items]
Liabilities fair value	0.8	0.7
Fair Value Other Liabilities
Derivatives, Fair Value [Line Items]
Liabilities fair value	$ 0.0	$ 0.0