Income Taxes (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
Sep. 30, 2020 |
|
| Income Tax Disclosure [Abstract] | |||||
| Income tax expense (benefit) | $ (2,325) | $ (6,209) | $ 2,627 | $ (22,672) | |
| Federal statutory rate (as a percent) | 35.00% | 21.00% | |||
| Unrecognized tax benefits | 8,104 | $ 8,104 | $ 10,483 | ||
| Unrecognized tax benefits that would impact effective tax rate | 4,890 | 4,890 | 7,066 | ||
| Decrease reasonably possible in next 12 months | 5,655 | 5,655 | |||
| Total penalties and interest accrued | $ 1,773 | $ 1,773 | $ 2,172 | ||
| X | ||||||||||
- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|