Derivative Instruments and Hedging Activities (Forward Foreign Exchange Contracts) (Details) - Forward exchange contracts € in Millions, £ in Millions, kn in Millions, Ft in Millions, $ in Millions, $ in Millions	Sep. 30, 2020 GBP (£)	Sep. 30, 2020 USD ($)	Sep. 30, 2020 HUF (Ft)	Sep. 30, 2020 EUR (€)	Sep. 30, 2020 CAD ($)	Sep. 30, 2020 HRK (kn)
British Pounds Sterling
Derivative [Line Items]
US Dollar Amount	£ 3.8	$ 5.1
Weighted average exchange rate per $1 USD	0.81	0.81	0.81	0.81	0.81	0.81
Euro Member Countries, Euro
Derivative [Line Items]
US Dollar Amount		$ 1.2		€ 1.0
Weighted average exchange rate per $1 USD	0.80	0.80	0.80	0.80	0.80	0.80
Canada, Dollars
Derivative [Line Items]
US Dollar Amount		$ 2.0			$ 2.8
Weighted average exchange rate per $1 USD	1.42	1.42	1.42	1.42	1.42	1.42
Hungary, Forint
Derivative [Line Items]
US Dollar Amount		$ 1.0	Ft 274.1
Weighted average exchange rate per $1 USD	281.68	281.68	281.68	281.68	281.68	281.68
Croatia, Kuna
Derivative [Line Items]
US Dollar Amount		$ 0.4				kn 2.5
Weighted average exchange rate per $1 USD	6.32	6.32	6.32	6.32	6.32	6.32