XML 115 R93.htm IDEA: XBRL DOCUMENT v3.25.3
Derivative Instruments and Hedging Activities (Narrative) (Details)
$ in Thousands
 12 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
May 31, 2020
USD ($)
Swap
Loan
Sep. 23, 2016
EUR (€)
Derivative Instruments Gain Loss [Line Items]          
Remaining unrecognized gains (losses) associated with derivative instruments included in AOCI $ (5,830) $ (5,160)      
2016 Note Purchase Agreements [Member]          
Derivative Instruments Gain Loss [Line Items]          
Issuance date Sep. 23, 2016        
Face amount | €         € 160,000,000
Series M Notes [Member]          
Derivative Instruments Gain Loss [Line Items]          
Face amount | €         € 40,000,000
Maturity date Sep. 23, 2026        
Gain (Loss) on foreign currency transaction designated as a hedge of a net investment in a foreign subsidiary $ (2,263) $ (2,381) $ (3,090)    
2020 Fixed-Rate Cross-Currency Swaps [Member]          
Derivative Instruments Gain Loss [Line Items]          
Derivative, notional amount $ 315,000     $ 400,000  
2020 Fixed-Rate Cross-Currency Swaps [Member] | Not Designated as Hedging Instrument, Economic Hedge [Member]          
Derivative Instruments Gain Loss [Line Items]          
Derivative, number of instruments | Swap       5  
2020 Floating-Rate Cross-Currency Swap [Member]          
Derivative Instruments Gain Loss [Line Items]          
Derivative, notional amount       $ 45,000  
Fixed-Rate Cross Currency Interest Rate Contract [Member] | Designated as Hedging Instrument | Cash Flow Hedging          
Derivative Instruments Gain Loss [Line Items]          
Derivative, number of instruments | Loan       5