Hedging Instruments (Narrative) (Details)				3 Months Ended			9 Months Ended
	Jun. 30, 2028 USD ($)	Mar. 31, 2028 USD ($)	Jun. 18, 2025 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 EUR (€)	Jun. 30, 2023 EUR (€)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2015 EUR (€)
Derivative [Line Items]
Credit facility				$ 250,000,000			$ 250,000,000					$ 579,000,000
Unrealized gain on Euro-denominated notes, net of tax				2,331,000		$ 5,495,000	488,000	$ 11,028,000
Proceeds from net investment hedges							6,256,000	0
Unrealized gain (losses) on cross currency swaps, net of tax				1,858,000		5,319,000	(1,158,000)	10,597,000
Excluded component recognized as reduction of interest				300,000		$ 700,000	1,800,000	$ 2,100,000
Euro-Denominated Notes
Derivative [Line Items]
Debt instrument, face amount | €													€ 88,900,000
Stated interest rate (as a percent)													1.785%
Interest Rate Swap
Derivative [Line Items]
Estimated net amount of gain expected to be reclassified out of accumulated other comprehensive income and into earnings within next 12 months							2,900,000
Derivative, fixed interest rate (as a percent)											3.90%
Foreign Currency Exchange Contracts
Derivative [Line Items]
Estimated net amount of gain expected to be reclassified out of accumulated other comprehensive income and into earnings within next 12 months							$ 5,600,000
General duration of foreign currency exchange contracts (in months)							24 months
Derivative, notional amount				256,800,000			$ 256,800,000					258,200,000
Cross Currency Swaps | Derivatives and non-derivatives designated as hedging instruments
Derivative [Line Items]
Derivative, notional amount | €										€ 90,000,000
Proceeds from net investment hedges					$ 6,300,000
Cross Currency Swaps | Derivatives and non-derivatives designated as hedging instruments
Derivative [Line Items]
Derivative, notional amount | €									€ 15,000,000
Cross Currency Swaps | Forecast | Derivatives and non-derivatives designated as hedging instruments
Derivative [Line Items]
Proceeds from net investment hedges			$ 17,500,000
Cross Currency Swaps | Derivatives and non-derivatives designated as hedging instruments
Derivative [Line Items]
Derivative, notional amount | €									35,000,000
Cross Currency Swaps | Forecast | Derivatives and non-derivatives designated as hedging instruments
Derivative [Line Items]
Proceeds from net investment hedges		$ 37,800,000
Cross Currency Swaps | Derivatives and non-derivatives designated as hedging instruments
Derivative [Line Items]
Derivative, notional amount | €									€ 90,000,000
Cross Currency Swaps | Forecast | Derivatives and non-derivatives designated as hedging instruments
Derivative [Line Items]
Proceeds from net investment hedges	$ 98,200,000
Minimum | Foreign Currency Exchange Contracts
Derivative [Line Items]
Cash flow hedge, hedge percentage of estimated exposure from intercompany products purchases and sales (as a percent)							75.00%
Maximum | Foreign Currency Exchange Contracts
Derivative [Line Items]
Cash flow hedge, hedge percentage of estimated exposure from intercompany products purchases and sales (as a percent)							85.00%
Term Loan
Derivative [Line Items]
Credit facility				$ 250,000,000			$ 250,000,000					$ 250,000,000
Debt instrument, face amount											$ 250,000,000
Term Loan | Interest Rate Swap
Derivative [Line Items]
Credit facility											$ 250,000,000