Shareholders' Equity - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Class of Stock [Line Items]
Net proceeds from equity issuances	$ 472,009	$ 379,490
Forward sales equity agreement, settlement in cash	1,088,923
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	5,200,000
At-The-Market
Class of Stock [Line Items]
Value of shares authorized for issuance	$ 1,700,000
Shares issued (in shares)	3,683,384
Net proceeds from equity issuances	$ 472,000
Equity available for issuance	$ 827,100