v3.26.1
Shareholders' Equity - Narrative (Details) - USD ($)
$ in Thousands
 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Class of Stock [Line Items]    
Net proceeds from equity issuances $ 941,694 $ 568,603
Forward sales equity agreement, settlement in cash 936,841  
Shelf Registration Statement    
Class of Stock [Line Items]    
Debt and equity securities authorized for issuance 8,000,000  
Debt and equity securities authorized for issuance value remaining 4,500,000  
At-The-Market    
Class of Stock [Line Items]    
Value of shares authorized for issuance $ 1,700,000  
Shares issued (in shares) 7,084,863  
Net proceeds from equity issuances $ 941,700  
Equity available for issuance $ 506,500