Quarterly report [Sections 13 or 15(d)]

Derivatives and Hedging Activities - Narrative (Details)

v3.25.1
Derivatives and Hedging Activities - Narrative (Details)
$ in Thousands, € in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
Mar. 31, 2025
USD ($)
Sep. 30, 2024
USD ($)
Mar. 31, 2025
EUR (€)
Mar. 31, 2025
USD ($)
Sep. 30, 2024
EUR (€)
Sep. 30, 2024
USD ($)
Mar. 31, 2024
USD ($)
Designated as Hedging Instrument                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Unrealized gain expected to be recognized over the next 12 months         $ 755      
Net investment hedges | Designated as Hedging Instrument                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Derivative, notional amount         171,392   $ 146,392  
Interest Rate Swaps | Cash flow hedges | Designated as Hedging Instrument                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Unrealized gain on fair value of interest rate swaps, before tax   $ (765) $ (2,606)          
Unrealized gain on fair value of interest rate swaps, after tax   (571) (1,948)          
Derivative, notional amount         225,000     $ 175,000
LIBOR-Based Swap | Cash flow hedges | Designated as Hedging Instrument                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Unrecognized gain on LIBOR-based swaps   2,341 3,848          
Unrecognized gain on LIBOR-based swaps, after tax   1,746 2,874          
Cross-Currency Swaps                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Advance payments received from counterparties         73,422   58,432  
Cross-Currency Swaps | Net investment hedges | Designated as Hedging Instrument                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Net investment hedge, gain (loss), after reclassification, tax expense (benefit) $ 2,156 $ 621            
Cross-Currency Swaps | Net investment hedges | Designated as Hedging Instrument | Other current liabilities                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Derivative liability, current         32,406   17,416  
Cross-Currency Swaps | Net investment hedges | Designated as Hedging Instrument | Other Liabilities                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Derivative liability, current         $ 41,016   41,016  
Foreign currency debt instruments | Foreign Line of Credit                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Derivative, notional amount       € 0.0   € 30.0 $ 33,485  
Foreign currency debt instruments | Net investment hedges | Designated as Hedging Instrument                
Derivative Instruments and Hedging Activities Disclosures [Line Items]                
Currency losses     3,820          
Net investment hedge, gain (loss), after reclassification, tax expense (benefit)     $ 1,113