Stockholders' Equity (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2019
Class of Stock [Line Items]
Equity Securities Registered, Value		$ 750.0
At-the-market Equity Offering Program, Common Stock Available for Issuance	$ 298.2	$ 300.0
At-the-market Equity Offering Program, Common Stock Issued	84,547
At-the-market Equity Offering Program, Net Proceeds	$ 1.7
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs	0.1
Common Stock, Shares Authorized	$ 748.2