Income Taxes [Line Items]

No definition available.

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- Definition

Operating loss carryforwards expiration year.

+ References

No definition available.

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- Definition

Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible interest carryforward.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-6

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are not subject to expiration dates.

+ References

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- Definition

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.

+ References

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-12

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-Topic 740
-SubTopic 10
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-Topic 740
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-Topic 235
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- Definition

The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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- Definition

The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 217
-Publisher FASB
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-Topic 740
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-URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A

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Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Sep. 30, 2024	Sep. 30, 2023
Income Taxes [Line Items]
Interest expense carryovers					$ 9,258	$ 6,457
Operating loss carryforwards, valuation allowance					41,600	21,100
Unrecognized tax benefits if unrecognized, the balance of uncertain tax benefits would impact the effective tax rate					4,900	$ 4,900
Effective tax rate (ETR) from continuing operations	(1.20%)	3.90%	3.70%	(0.20%)
Domestic Tax Authority [Member]
Income Taxes [Line Items]
Net operating loss carryforwards not subject to expiration					$ 194,200
Effective income tax rate reconciliation, at federal statutory income tax rate, percent					80.00%
Interest expense carryovers					$ 41,700
Domestic Tax Authority [Member] \| 2030-2038 [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 277,600		$ 277,600		511,700
State and Local Jurisdiction [Member] \| 2024-2043 [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 150,600		$ 150,600		$ 226,900
Minimum [Member] \| Domestic Tax Authority [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration year			2030		2027
Minimum [Member] \| State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration year			2024		2024
Maximum [Member] \| Domestic Tax Authority [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration year			-2038		2038
Maximum [Member] \| State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Operating loss carryforwards, expiration year			-2043		2044