v3.26.1
Other Financial Information - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Other Financials Information [Line Items]          
Restructuring and acquisition costs $ 12,082 $ 0 $ 53,580 $ 0  
Accrued restructuring expenses 42,000   42,000    
Accrued value added taxes $ 63,400   63,400   $ 62,500
Cash dividends declared (in dollars per share) $ 0.31        
Accrued and unpaid dividend $ 42,500   42,500    
Labor-Related Costs          
Other Financials Information [Line Items]          
Restructuring and acquisition costs     40,800    
Non-Labor          
Other Financials Information [Line Items]          
Restructuring and acquisition costs     $ 12,800