Quarterly report [Sections 13 or 15(d)]

Fair Value Measurements - Accumulated Other Comprehensive Loss (Details)

v3.25.1
Fair Value Measurements - Accumulated Other Comprehensive Loss (Details)
$ in Thousands
6 Months Ended
Mar. 31, 2025
USD ($)
Increase (Decrease) in Shareholders' Equity  
Beginning balance $ 1,842,815
Ending balance 1,667,474
Foreign currency translation adjustment  
Increase (Decrease) in Shareholders' Equity  
Beginning balance (39,225)
Other comprehensive income before reclassifications (7,089)
Amounts reclassified from accumulated other comprehensive loss 21,272
Net current period other comprehensive income/(loss) 14,183
Ending balance (25,042)
Net unrealized gain on derivatives, net of tax  
Increase (Decrease) in Shareholders' Equity  
Beginning balance 6,765
Other comprehensive income before reclassifications 4,360
Amounts reclassified from accumulated other comprehensive loss (4,458)
Net current period other comprehensive income/(loss) (98)
Ending balance 6,667
Total  
Increase (Decrease) in Shareholders' Equity  
Beginning balance (32,460)
Other comprehensive income before reclassifications (2,729)
Amounts reclassified from accumulated other comprehensive loss 16,814
Net current period other comprehensive income/(loss) 14,085
Ending balance $ (18,375)