Shareholders' Equity - Schedule of Forward Sales Executed (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2023 USD ($) $ / shares shares
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares Available (in shares) | shares	3,961,025
Net Proceeds Available | $	$ 466,803
Forward Price (USD per share) | $ / shares	$ 117.85
Forward Sales Equity Agreement Maturing March 28, 2024
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares Available (in shares) | shares	944,296
Net Proceeds Available | $	$ 112,238
Forward Price (USD per share) | $ / shares	$ 118.86
Forward Sales Equity Agreement Maturing June 28 , 2024
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares Available (in shares) | shares	927,939
Net Proceeds Available | $	$ 109,495
Forward Price (USD per share) | $ / shares	$ 118.00
Forward Sales Equity Agreement Maturing September 30, 2024
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares Available (in shares) | shares	1,133,978
Net Proceeds Available | $	$ 132,762
Forward Price (USD per share) | $ / shares	$ 117.08
Forward Sales Equity Agreement Maturing December 31, 2024
Forward Contract Indexed to Issuer's Equity [Line Items]
Shares Available (in shares) | shares	954,812
Net Proceeds Available | $	$ 112,308
Forward Price (USD per share) | $ / shares	$ 117.62