Derivative Instruments and Hedging Activities Open Foreign Currency Contracts (Details) - Cash Flow Hedging - Foreign currency contracts - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Derivative [Line Items]
Notional Amounts (in U.S. Dollars)	$ 196.1	$ 209.3
Net Unrealized Gain (Loss)	(0.8)	(2.3)
Australian Dollar
Derivative [Line Items]
Notional Amounts (in U.S. Dollars)	16.1	26.0
Net Unrealized Gain (Loss)	0.5	(0.5)
Canadian Dollar
Derivative [Line Items]
Notional Amounts (in U.S. Dollars)	126.4	169.8
Net Unrealized Gain (Loss)	(0.1)	(2.8)
Mexican Peso
Derivative [Line Items]
Notional Amounts (in U.S. Dollars)	53.6	13.5
Net Unrealized Gain (Loss)	$ (1.2)	$ 1.0