| Audit Information | 12 Months Ended | 
|---|---|
| Sep. 30, 2024 | |
| Audit Information [Abstract] | |
| Auditor Firm ID | 238 | 
| Auditor Name | PricewaterhouseCoopers LLP | 
| Auditor Location | Washington, District of Colombia | 
| X | ||||||||||
| 
- Definition PCAOB issued Audit Firm Identifier Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef 
 | 
| X | ||||||||||
| 
- Definition Audit Information No definition available. 
 |