Accrued value of stock to be purchased as a result of employee stock purchase plan.

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Upon vesting, each performance share unit equals to common stock of the entity.

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No definition available.

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- Definition

The percentage of expected the performance targets to be fully achieved of the target award

+ References

No definition available.

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- Definition

The number of shares that may be issued under the ESPP will increase by a number of shares equal to the percentage of outstanding shares.

+ References

No definition available.

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- Definition

The percentage of target granted for award eligible to be earned based on relative performance.

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No definition available.

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- Definition

The number of equal installments for share-based compensation awards to vest.

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No definition available.

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- Definition

Amount authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
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- Definition

Aggregate number of common shares reserved for future issuance.

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-Topic 210
-SubTopic 10
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- References

No definition available.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 718
-SubTopic 10
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-Paragraph 2
-Subparagraph (i)
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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

Amount of noncash expense for share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (a)
-SubTopic 10
-Topic 230
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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
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-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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- Definition

The number of shares issued during the period upon the conversion of units. An example of a convertible unit is an umbrella partnership real estate investment trust unit (UPREIT unit).

+ References

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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- Definition

Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

No definition available.

+ Details

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- Definition

Number of shares that have been repurchased and retired during the period.

+ References

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- Definition

Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

+ References

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Stockholders’ Equity - Narrative (Details) $ / shares in Units, $ in Thousands					3 Months Ended			6 Months Ended		33 Months Ended
	Oct. 02, 2024 intallment shares	Oct. 01, 2024 shares	Oct. 02, 2023 intallment	Feb. 23, 2021 shares	Mar. 31, 2026 USD ($) $ / shares shares	Dec. 31, 2025 shares	Mar. 31, 2025 USD ($) $ / shares	Mar. 31, 2026 USD ($) $ / shares shares	Mar. 31, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) shares	Sep. 30, 2025 USD ($)	Mar. 30, 2022 USD ($)
Share-Based Payment Arrangement [Abstract]
Percentage of expected performance targets to be achieved target award					100.00%			100.00%
Authorized amount \| $												$ 50,000
Stock repurchase program, remaining authorized repurchase amount \| $					$ 48,100			$ 48,100
Equity-based awards \| $					2,805		$ 2,088	$ 4,941	$ 4,258
Employee Stock
Share-Based Payment Arrangement [Abstract]
Equity-based awards \| $					$ 100		100
OneWater LLC
Share-Based Payment Arrangement [Abstract]
Ownership interest in subsidiaries					100.00%			100.00%
Performance Shares
Share-Based Payment Arrangement [Abstract]
Awarded (in shares)								384,472
Percentage of target award granted								100.00%
Number of shares of common stock consisted in each unit (in shares)								1
Number of equal annual installments for vesting \| intallment			3
Share-based payment arrangement, expense \| $					$ 1,400		800	$ 1,900	1,500
Time-Based Restricted Stock Units
Share-Based Payment Arrangement [Abstract]
Awarded (in shares)	371,814	61,343						433,157
Number of equal annual installments for vesting \| intallment	3
Restricted Stock Units
Share-Based Payment Arrangement [Abstract]
Awarded (in shares)								817,629,000
Share-based payment arrangement, expense \| $					2,700		$ 2,000	$ 4,700	$ 4,000
Nonvested award \| $					11,400			$ 11,400
Cost not yet recognized, period for recognition								1 year 4 months 24 days
Employee Stock
Share-Based Payment Arrangement [Abstract]
Shares issued as part of employee stock purchase plan (in shares)								47,463	36,167
Equity-based awards \| $								$ 200	$ 300
Stock to be purchased under ESPP \| $					$ 200			$ 200			$ 200
Shares Issued, Price Per Share \| $ / shares					$ 9.20		$ 14.77	$ 9.20	$ 14.77
Class A Common Stock
Share-Based Payment Arrangement [Abstract]
Capital shares reserved for future issuance (in shares)					1,661,754			1,661,754
Repurchased shares (in shares)					0
Repurchased and retired shares (in shares)										73,487
Repurchase and retirement of shares amount \| $										$ 1,900
Percentage of outstanding shares, ESPP issuance				1.00%
Exchange of B shares for A shares (in shares)						1,429,940
Class A Common Stock \| Maximum
Share-Based Payment Arrangement [Abstract]
Shares issued as part of employee stock purchase plan (in shares)				612,434
Class B Common Stock
Share-Based Payment Arrangement [Abstract]
Exchange of B shares for A shares (in shares)						1,429,940