Revenue and Accounts Receivable - Schedule of Rollforward of Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | ||||
| Beginning balance | $ 45,100 | $ 39,166 | $ 45,259 | $ 37,056 |
| Current period provisions | 14,060 | 14,391 | 21,485 | 23,015 |
| Write-offs charged against allowance | (4,275) | (4,761) | (12,866) | (12,209) |
| Recoveries of amounts previously written off | 459 | 545 | 1,466 | 1,479 |
| Ending balance | $ 55,344 | $ 49,341 | $ 55,344 | $ 49,341 |
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of increase in allowance for credit loss on accounts receivable, from recovery. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of direct write-downs of accounts receivable charged against the allowance. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|