Description of Company and Basis of Presentation	9 Months Ended
Description of Company and Basis of Presentation	Jun. 30, 2024
Description of Company and Basis of Presentation [Abstract]
Description of Company and Basis of Presentation	Description of Company and Basis of Presentation Description of the Business OneWater Marine Inc. (“OneWater Inc”) was incorporated in Delaware on April 3, 2019 and was a wholly-owned subsidiary of One Water Marine Holdings, LLC (“OneWater LLC”). Pursuant to a reorganization on February 11, 2020 into a holding company structure for the purpose of facilitating an initial public offering (the “IPO”) and related transactions in order to carry on the business of OneWater LLC and its subsidiaries (together with OneWater Inc, the “Company”), OneWater Inc is the holding company and its sole material asset is the equity interest in OneWater LLC. OneWater LLC was organized as a limited liability company under the law of the State of Delaware in 2014 and is the parent company of One Water Assets & Operations (“OWAO”), and its wholly-owned subsidiaries. The Company is one of the largest recreational marine retailers in the United States. The Company engages primarily in the retail sale, brokerage, and service of new and pre-owned boats, motors, trailers, the sale of marine parts and accessories, and offers slip and storage accommodations in certain locations. The Company also arranges related boat financing, insurance, and extended service contracts for customers with third-party lenders and insurance companies. As of June 30, 2024, the Company operates a total of 98 retail locations, 10 distribution centers/warehouses and multiple online marketplaces in 18 states, several of which are in the top twenty states for marine retail expenditures. Operating results are generally subject to seasonal variations. Demand for products is generally highest during the third and fourth quarters of the fiscal year and, accordingly, revenues are generally expected to be higher during these periods. General economic conditions, including rising interest rates and consumer spending patterns, can negatively impact the Company’s operating results. Unfavorable local, regional, national, or global economic developments, global public health concerns, or uncertainties could reduce consumer spending and adversely affect the Company’s business. Consumer spending on discretionary goods may also decline as a result of lower consumer confidence levels, even if prevailing economic conditions are otherwise favorable. Economic conditions in areas in which the Company operates, particularly in the Southeast, can have a major impact on the Company’s overall results of operations. Local influences such as corporate downsizing, inclement weather such as hurricanes, tornadoes and other storms, environmental conditions, and other events have and could adversely affect the Company’s operations in certain markets and in certain periods. Any extended period of adverse economic conditions or low consumer confidence is likely to have a negative effect on the Company’s business. Sales of new boats from the Company’s top ten brands represent approximately 42.7% and 40.2% of total sales for the nine months ended June 30, 2024 and 2023, respectively, making them major suppliers of the Company. Of this amount, Malibu Boats, Inc., including its brands Malibu, Axis, Cobalt, Pursuit, Maverick, Hewes, Cobia and Pathfinder accounted for 13.7% and 14.4% of consolidated revenue for the nine months ended June 30, 2024 and 2023, respectively. As is typical in the industry, the Company contracts with most manufacturers under renewable annual dealer agreements, each of which provides the right to sell various makes and models of boats within a given geographic region. Any change or termination of these agreements, or the agreements discussed above, for any reason, or changes in competitive, regulatory, or marketing practices, including rebate or incentive programs, could adversely affect results of operations. Pre-owned boats are usually trade-ins from retail customers who are purchasing a boat from the Company. 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 attributable to OneWater Inc’s Class A stockholders. As of June 30, 2024, OneWater Inc owned 91.1% of the economic interest of OneWater LLC. Commencing December 31, 2021, the Company owned 80% of the economic interest of Quality Assets and Operations, LLC, over which the Company exercised control and the minority interest in this subsidiary was recorded accordingly. On October 31, 2023, the Company acquired the remaining 20% of the economic interest and, as a result, as of June 30, 2024 owned 100% of the economic interest in Quality Assets and Operations, LLC. 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, 2023. All adjustments, consisting of only normal recurring adjustments considered by management to be 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 fiscal year ending on September 30.