Description of Company and Basis of Presentation (Policies)	6 Months Ended
Mar. 31, 2023
Description of Company and Basis of Presentation [Abstract]
Principles of Consolidation	Principles of Consolidation As the sole managing member of OneWater LLC, OneWater Inc. operates and controls all of the businesses and affairs of OneWater LLC. Through OneWater LLC and its wholly-owned subsidiaries, as well as majority-owned subsidiaries over which the Company exercises control, OneWater Inc. conducts its business. As a result, OneWater Inc. consolidates the financial results of OneWater LLC and its subsidiaries and reports non-controlling interests related to the portion of units of OneWater LLC (the “OneWater LLC Units”) not owned by OneWater Inc., which will reduce net income (loss) attributable to OneWater Inc.’s Class A stockholders. As of March 31, 2023, OneWater Inc. owned 90.9% of the economic interest of OneWater LLC. Commencing December 31, 2021, the Company owns 80% of the economic interest of Quality Assets and Operations, over which the Company exercises control and the minority interest in this subsidiary has been recorded accordingly. See Note 4 for additional information regarding the acquisition.
Basis of Financial Statement Preparation	Basis of Financial Statement Preparation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial statements, which do not include all the information and notes required by such accounting principles for annual financial statements. The unaudited condensed consolidated financial statements should be read in conjunction with OneWater Inc.’s Annual Report on Form 10-K for the year ended September 30, 2022. All adjustments, consisting of only normal recurring adjustments considered necessary for fair presentation, have been reflected in these unaudited condensed consolidated financial statements. All intercompany transactions have been eliminated in consolidation. The Company operates on a fiscal year basis with the first day of the fiscal year being October 1, and the last day of the year ending on September 30.
Cash	Cash At times the amount of cash on deposit may exceed the federally insured limit of the bank. Deposit accounts at each of the institutions are insured up to $250,000 by the Federal Deposit Insurance Corporation (FDIC). At March 31, 2023 and September 30, 2022, the Company exceeded FDIC limits at various institutions. The Company has not experienced any losses in such accounts and believes there is little to no exposure to any significant credit risk.
Restricted Cash	Restricted CashRestricted cash relates to amounts collected for pre-owned sales, in certain states, which are held in escrow on behalf of the respective buyers and sellers for future purchases of boats. Total customer deposits are shown as a liability on the consolidated balance sheets. These liabilities may be more than the applicable restricted cash balances and fluctuate due to timing differences and because in certain states the deposits are not restricted from use.
Inventories	Inventories Inventories are stated at the lower of cost or net realizable value. The cost of the new and pre-owned boat inventory is determined using the specific identification method. In assessing lower of cost or net realizable value the Company considers the aging of the boats, historical sales of a brand and current market conditions. The cost of acquired, manufactured and assembled parts and accessories is determined using methods which vary by subsidiary and include both the average cost method and first-in, first-out (“FIFO”).
Goodwill and Other Identifiable Intangible Assets	Goodwill and Other Identifiable Intangible Assets Goodwill and intangible assets are accounted for in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 350, ‘‘Intangibles - Goodwill and Other’’ (‘‘ASC 350’’), which provides that the excess of cost over the fair value of the net assets of businesses acquired, including other identifiable intangible assets, is recorded as goodwill. Goodwill is an asset representing operational synergies and future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. In accordance with ASC 350, Goodwill is tested for impairment at least annually, or more frequently when events or circumstances indicate that impairment might have occurred. ASC 350 also states that if an entity determines, based on an assessment of certain qualitative factors, that it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, then a quantitative goodwill impairment test is unnecessary. Identifiable intangible assets primarily consist of trade names, developed technologies, including design libraries, and customer relationships related to the acquisitions the Company has completed. The Company has determined that trade names have an indefinite life, as there are no economic, contractual or other factors that limit their useful lives and they are expected to generate value as long as the trade name is utilized by the Company, and therefore, are not subject to amortization. Developed technologies and customer relationships are amortized over their estimated useful lives of ten years and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Financial statement risk exists to the extent identifiable intangibles become impaired due to the decrease in the fair value of the identifiable assets.
Sales Tax	Sales Tax The Company collects sales tax on all of the Company’s sales to nonexempt customers and remits the entire amount to the states that imposed the sales tax on and concurrent with specific sales transactions. The Company’s accounting policy is to exclude the tax collected and remitted to the states from revenues and cost of sales.
Revenue Recognition	Revenue Recognition Revenue is recognized from the sale of products and commissions earned on new and pre-owned boats (including used, brokerage, consignment and wholesale) when ownership is transferred to the customer, which is generally upon acceptance or delivery to the customer. At the time of acceptance or delivery, the customer is able to direct the use of, and obtain substantially all of the benefits at such time. We are the principal with respect to revenue from new, pre-owned and consignment sales and such revenue is recorded at the gross sales price. With respect to brokerage transactions, we are acting as an agent in the transaction, therefore the fee or commission is recorded on a net basis. Revenue from parts and accessories sold directly to a customer (not on a repair order) is recognized when control of the item is transferred to the customer, which is typically upon shipment. Revenue from parts and service operations (boat maintenance and repairs) are recorded over time as services are performed. Satisfaction of this performance obligation creates an asset with no alternative use for which an enforceable right to payment for performance to date exists within our contractual agreements. Each boat maintenance and repair service is a single performance obligation that includes both the parts and labor associated with the service. Payment for boat maintenance and repairs is typically due upon the completion of the service, which is generally completed within a period of one year or less from contract inception. The Company recorded contract assets in prepaid expenses and other current assets of $4.3 million and $3.7 million as of March 31, 2023 and September 30, 2022. Certain parts and service transactions require the Company to perform shipping and handling activities after the transfer of control to the customer (e.g., when control transfers prior to delivery). They are considered fulfillment activities and are included in selling, general and administrative expenses. Revenue from storage and marina operations is recognized on a straight-line basis over the term of the contract as services are completed. Revenue from arranging financing, insurance and extended warranty contracts to customers through various third-party financial institutions and insurance companies is recognized when the related boats are sold. We do not directly finance our customers’ boat, motor or trailer purchases. We are acting as an agent in the transaction, therefore the commission is recorded on a net basis. Subject to our agreements and in the event of early cancellation, prepayment or default of such loans or insurance contracts by the customer, we may be assessed a chargeback for a portion of the commission paid by the third-party financial institutions and insurance companies. We reserve for these chargebacks based on our historical experience with repayments or defaults. Chargebacks were not material to the unaudited condensed consolidated financial statements for the three and six months ended March 31, 2023 and March 31, 2022.
Income Taxes	Income Taxes OneWater Inc. is a corporation and as a result, is subject to U.S. federal, state and local income taxes. We account for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events included in the consolidated financial statements. Under this method, we determine deferred tax assets and liabilities on the basis of the differences between the book value and tax bases of assets and liabilities by using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period in which the enactment date occurs. We recognize deferred tax assets to the extent we believe these assets are more-likely-than-not to be realized. In making such a determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies and recent results of operations. OneWater LLC is treated as a partnership for U.S. federal income tax purposes and therefore does not pay U.S. federal income tax on its taxable income. Instead, the OneWater LLC members are liable for U.S. federal income tax on their respective shares of the Company’s taxable income reported on the members’ U.S. federal income tax returns. When there are situations with uncertainty as to the timing of the deduction, the amount of the deduction, or the validity of the deduction, the Company adjusts the financial statements to reflect only those tax positions that are more-likely-than-not to be sustained. Positions that meet this criterion are measured using the largest benefit that is more than 50% likely to be realized. Interest and penalties related to income taxes are included in the benefit (provision) for income taxes in the consolidated statements of operations.
Vendor Consideration Received	Vendor Consideration Received Consideration received from vendors is accounted for in accordance with FASB Accounting Standards Codification 330, ‘‘Inventory’’ (‘‘ASC 330’’). Pursuant to ASC 330, manufacturer incentives based upon cumulative volume of sales and purchases are recorded as a reduction of inventory cost and related cost of sales when the amounts are probable and reasonably estimable.
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the periods presented. Actual results could differ materially from these estimates. Estimates and assumptions are reviewed periodically, and the effects of any revisions are reflected in the consolidated financial statements in the period they are determined to be necessary. Significant estimates made in the accompanying unaudited condensed consolidated financial statements include, but are not limited to, those relating to inventory mark downs, certain assumptions related to intangible and long-lived assets and valuation of contingent consideration.
Segment Information	Segment Information Effective August 9, 2022, we completed the acquisition of Ocean Bio-Chem, Inc., and Star Brite Europe, Inc (collectively “Ocean Bio-Chem”), which changed management’s reporting structure and operating activities. We now report our operations through two reportable segments: Dealerships and Distribution. The Dealership segment engages in the sale of new and pre-owned boats, arranges financing and insurance products, performs repairs and maintenance services, offers marine related parts and accessories and offers slip and storage accommodations in certain locations. The Distribution segment engages in the manufacturing, assembly and distribution primarily of marine related products to distributors, big box retailers and online retailers through a network of warehouse and distribution centers. Each reporting segment has discrete financial information and is regularly reviewed by the Company’s chief operating decision maker (“CODM”) to assess performance and allocate resources. The Company has identified its Chief Executive Officer as its CODM. The change in reportable segments had no impact on the Company’s previously reported historical consolidated financial statements.
New Accounting Pronouncements	New Accounting Pronouncements In October 2021, the FASB issued ASU 2021-08, “Business Combinations (Topic 805) – Accounting for Contract Assets and Contract Liabilities from Contracts with Customers”, which is intended to improve the accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to the recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer. The pronouncement is effective for a public company’s annual reporting periods beginning after December 15, 2022, and interim periods within those annual periods. The Company is currently evaluating the impact that this standard will have on the consolidated financial statements. The Company plans to adopt the pronouncement in fiscal year 2024. Other than as noted above, there are no new accounting pronouncements that are expected to have a material effect on our consolidated financial statements.

Description of Company and Basis of Presentation (Policies)

6 Months Ended

Mar. 31, 2023

Description of Company and Basis of Presentation [Abstract]

As the sole managing member of OneWater LLC, OneWater Inc. operates and controls all of the businesses and affairs of OneWater LLC. Through OneWater LLC and its wholly-owned subsidiaries, as well as majority-owned subsidiaries over which the Company exercises control, OneWater Inc. conducts its business. As a result, OneWater Inc. consolidates the financial results of OneWater LLC and its subsidiaries and reports non-controlling interests related to the portion of units of OneWater LLC (the “OneWater LLC Units”) not owned by OneWater Inc., which will reduce net income (loss) attributable to OneWater Inc.’s Class A stockholders. As of March 31, 2023, OneWater Inc. owned 90.9% of the economic interest of OneWater LLC.

Commencing December 31, 2021, the Company owns 80% of the economic interest of Quality Assets and Operations, over which the Company exercises control and the minority interest in this subsidiary has been recorded accordingly. See Note 4 for additional information regarding the acquisition.

Basis of Financial Statement Preparation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial statements, which do not include all the information and notes required by such accounting principles for annual financial statements. The unaudited condensed consolidated financial statements should be read in conjunction with OneWater Inc.’s Annual Report on Form 10-K for the year ended September 30, 2022. All adjustments, consisting of only normal recurring adjustments considered necessary for fair presentation, have been reflected in these unaudited condensed consolidated financial statements.

All intercompany transactions have been eliminated in consolidation. The Company operates on a fiscal year basis with the first day of the fiscal year being October 1, and the last day of the year ending on September 30.

Cash

At times the amount of cash on deposit may exceed the federally insured limit of the bank. Deposit accounts at each of the institutions are insured up to $250,000 by the Federal Deposit Insurance Corporation (FDIC). At March 31, 2023 and September 30, 2022, the Company exceeded FDIC limits at various institutions. The Company has not experienced any losses in such accounts and believes there is little to no exposure to any significant credit risk.

Restricted Cash

Restricted CashRestricted cash relates to amounts collected for pre-owned sales, in certain states, which are held in escrow on behalf of the respective buyers and sellers for future purchases of boats. Total customer deposits are shown as a liability on the consolidated balance sheets. These liabilities may be more than the applicable restricted cash balances and fluctuate due to timing differences and because in certain states the deposits are not restricted from use.

Inventories

Inventories Inventories are stated at the lower of cost or net realizable value. The cost of the new and pre-owned boat inventory is determined using the specific identification method. In assessing lower of cost or net realizable value the Company considers the aging of the boats, historical sales of a brand and current market conditions. The cost of acquired, manufactured and assembled parts and accessories is determined using methods which vary by subsidiary and include both the average cost method and first-in, first-out (“FIFO”).

Goodwill and Other Identifiable Intangible Assets

Goodwill and intangible assets are accounted for in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 350, ‘‘Intangibles - Goodwill and Other’’ (‘‘ASC 350’’), which provides that the excess of cost over the fair value of the net assets of businesses acquired, including other identifiable intangible assets, is recorded as goodwill. Goodwill is an asset representing operational synergies and future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. In accordance with ASC 350, Goodwill is tested for impairment at least annually, or more frequently when events or circumstances indicate that impairment might have occurred. ASC 350 also states that if an entity determines, based on an assessment of certain qualitative factors, that it is more likely than not that the fair value of a reporting unit is greater than its carrying amount, then a quantitative goodwill impairment test is unnecessary.

Identifiable intangible assets primarily consist of trade names, developed technologies, including design libraries, and customer relationships related to the acquisitions the Company has completed. The Company has determined that trade names have an indefinite life, as there are no economic, contractual or other factors that limit their useful lives and they are expected to generate value as long as the trade name is utilized by the Company, and therefore, are not subject to amortization. Developed technologies and customer relationships are amortized over their estimated useful lives of ten years and are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. Financial statement risk exists to the extent identifiable intangibles become impaired due to the decrease in the fair value of the identifiable assets.

Sales Tax

Sales Tax The Company collects sales tax on all of the Company’s sales to nonexempt customers and remits the entire amount to the states that imposed the sales tax on and concurrent with specific sales transactions. The Company’s accounting policy is to exclude the tax collected and remitted to the states from revenues and cost of sales.

Revenue Recognition

Revenue is recognized from the sale of products and commissions earned on new and pre-owned boats (including used, brokerage, consignment and wholesale) when ownership is transferred to the customer, which is generally upon acceptance or delivery to the customer. At the time of acceptance or delivery, the customer is able to direct the use of, and obtain substantially all of the benefits at such time. We are the principal with respect to revenue from new, pre-owned and consignment sales and such revenue is recorded at the gross sales price. With respect to brokerage transactions, we are acting as an agent in the transaction, therefore the fee or commission is recorded on a net basis.

Revenue from parts and accessories sold directly to a customer (not on a repair order) is recognized when control of the item is transferred to the customer, which is typically upon shipment. Revenue from parts and service operations (boat maintenance and repairs) are recorded over time as services are performed. Satisfaction of this performance obligation creates an asset with no alternative use for which an enforceable right to payment for performance to date exists within our contractual agreements. Each boat maintenance and repair service is a single performance obligation that includes both the parts and labor associated with the service. Payment for boat maintenance and repairs is typically due upon the completion of the service, which is generally completed within a period of one year or less from contract inception. The Company recorded contract assets in prepaid expenses and other current assets of $4.3 million and $3.7 million as of March 31, 2023 and September 30, 2022.

Certain parts and service transactions require the Company to perform shipping and handling activities after the transfer of control to the customer (e.g., when control transfers prior to delivery). They are considered fulfillment activities and are included in selling, general and administrative expenses.

Revenue from storage and marina operations is recognized on a straight-line basis over the term of the contract as services are completed. Revenue from arranging financing, insurance and extended warranty contracts to customers through various third-party financial institutions and insurance companies is recognized when the related boats are sold. We do not directly finance our customers’ boat, motor or trailer purchases. We are acting as an agent in the transaction, therefore the commission is recorded on a net basis. Subject to our agreements and in the event of early cancellation, prepayment or default of such loans or insurance contracts by the customer, we may be assessed a chargeback for a portion of the commission paid by the third-party financial institutions and insurance companies. We reserve for these chargebacks based on our historical experience with repayments or defaults. Chargebacks were not material to the unaudited condensed consolidated financial statements for the three and six months ended March 31, 2023 and March 31, 2022.

Income Taxes

OneWater Inc. is a corporation and as a result, is subject to U.S. federal, state and local income taxes. We account for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events included in the consolidated financial statements. Under this method, we determine deferred tax assets and liabilities on the basis of the differences between the book value and tax bases of assets and liabilities by using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period in which the enactment date occurs. We recognize deferred tax assets to the extent we believe these assets are more-likely-than-not to be realized. In making such a determination, we consider all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies and recent results of operations.

OneWater LLC is treated as a partnership for U.S. federal income tax purposes and therefore does not pay U.S. federal income tax on its taxable income. Instead, the OneWater LLC members are liable for U.S. federal income tax on their respective shares of the Company’s taxable income reported on the members’ U.S. federal income tax returns.

When there are situations with uncertainty as to the timing of the deduction, the amount of the deduction, or the validity of the deduction, the Company adjusts the financial statements to reflect only those tax positions that are more-likely-than-not to be sustained. Positions that meet this criterion are measured using the largest benefit that is more than 50% likely to be realized. Interest and penalties related to income taxes are included in the benefit (provision) for income taxes in the consolidated statements of operations.

Vendor Consideration Received

Consideration received from vendors is accounted for in accordance with FASB Accounting Standards Codification 330, ‘‘Inventory’’ (‘‘ASC 330’’). Pursuant to ASC 330, manufacturer incentives based upon cumulative volume of sales and purchases are recorded as a reduction of inventory cost and related cost of sales when the amounts are probable and reasonably estimable.

Use of Estimates

Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities as of the date of the financial statements, and the reported amounts of revenues and expenses during the periods presented. Actual results could differ materially from these estimates. Estimates and assumptions are reviewed periodically, and the effects of any revisions are reflected in the consolidated financial statements in the period they are determined to be necessary. Significant estimates made in the accompanying unaudited condensed consolidated financial statements include, but are not limited to, those relating to inventory mark downs, certain assumptions related to intangible and long-lived assets and valuation of contingent consideration.

Segment Information

Segment Information Effective August 9, 2022, we completed the acquisition of Ocean Bio-Chem, Inc., and Star Brite Europe, Inc (collectively “Ocean Bio-Chem”), which changed management’s reporting structure and operating activities. We now report our operations through two reportable segments: Dealerships and Distribution. The Dealership segment engages in the sale of new and pre-owned boats, arranges financing and insurance products, performs repairs and maintenance services, offers marine related parts and accessories and offers slip and storage accommodations in certain locations. The Distribution segment engages in the manufacturing, assembly and distribution primarily of marine related products to distributors, big box retailers and online retailers through a network of warehouse and distribution centers. Each reporting segment has discrete financial information and is regularly reviewed by the Company’s chief operating decision maker (“CODM”) to assess performance and allocate resources. The Company has identified its Chief Executive Officer as its CODM. The change in reportable segments had no impact on the Company’s previously reported historical consolidated financial statements.

New Accounting Pronouncements

In October 2021, the FASB issued ASU 2021-08, “Business Combinations (Topic 805) – Accounting for Contract Assets and Contract Liabilities from Contracts with Customers”, which is intended to improve the accounting for acquired revenue contracts with customers in a business combination by addressing diversity in practice and inconsistency related to the recognition of an acquired contract liability and payment terms and their effect on subsequent revenue recognized by the acquirer. The pronouncement is effective for a public company’s annual reporting periods beginning after December 15, 2022, and interim periods within those annual periods. The Company is currently evaluating the impact that this standard will have on the consolidated financial statements. The Company plans to adopt the pronouncement in fiscal year 2024.

Other than as noted above, there are no new accounting pronouncements that are expected to have a material effect on our consolidated financial statements.