Debt - Debt Capitalization Narrative (Details)	Sep. 30, 2024	Nov. 30, 2023	Sep. 30, 2023	Sep. 30, 2022
Revolving Credit Facility | Line of Credit
Short-Term Debt [Line Items]
Debt instrument, covenant, total indebtedness to EBITDA ratio	3.50
Acquisition Corp. | Revolving Credit Facility
Short-Term Debt [Line Items]
Debt instrument, covenant, total indebtedness to EBITDA ratio		3.60
2.750% Senior Secured Notes due 2028 | Acquisition Corp.
Short-Term Debt [Line Items]
Interest rate (as a percent)	2.75%
3.750% Senior Secured Notes
Short-Term Debt [Line Items]
Interest rate (as a percent)	3.75%		3.75%	3.75%
3.750% Senior Secured Notes | Acquisition Corp.
Short-Term Debt [Line Items]
Interest rate (as a percent)	3.75%
3.875% Senior Secured Notes due 2030 | Acquisition Corp.
Short-Term Debt [Line Items]
Interest rate (as a percent)	3.875%
2.250% Senior Secured Notes | Acquisition Corp.
Short-Term Debt [Line Items]
Interest rate (as a percent)	2.25%
3.000% Senior Secured Notes due 2031 | Acquisition Corp.
Short-Term Debt [Line Items]
Interest rate (as a percent)	3.00%