MarineMax (HZO) 10-K 19 Nov 21 2021 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Sep. 30, 2021	Nov. 15, 2021	Mar. 31, 2021
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Sep. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Trading Symbol	HZO
Entity Registrant Name	MarineMax, Inc.
Entity Central Index Key	0001057060
Current Fiscal Year End Date	--09-30
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Security Exchange Name	NYSE
Title of 12(b) Security	Common Stock, par value $.001 per share
Entity Interactive Data Current	Yes
Entity File Number	1-14173
Entity Incorporation, State or Country Code	FL
Entity Tax Identification Number	59-3496957
Entity Address, Address Line One	2600 McCormick Drive
Entity Address, Address Line Two	Suite 200
Entity Address, City or Town	Clearwater
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33759
City Area Code	727
Local Phone Number	531-1700
Document Annual Report	true
Document Transition Report	false
ICFR Auditor Attestation Flag	true
Entity Common Stock, Shares Outstanding		21,864,914
Entity Public Float			$ 1,067,622,396

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 222,192	$ 155,493
Accounts receivable, net	47,651	40,195
Inventories, net	230,984	298,002
Prepaid expenses and other current assets	16,692	9,637
Total current assets	517,519	503,327
Property and equipment, net	175,463	141,934
Operating lease right-of-use assets, net	104,901	37,991
Goodwill and other intangible assets, net	201,122	84,293
Other long-term assets	8,818	7,774
Total assets	1,007,823	775,319
CURRENT LIABILITIES:
Accounts payable	25,739	37,343
Contract liabilities (customer deposits)	100,660	31,821
Accrued expenses	86,594	51,616
Short-term borrowings	23,943	144,393
Current maturities on long-term debt	3,587	507
Current operating lease liabilities	10,570	6,854
Total current liabilities	251,093	272,534
Long-term debt, net of current maturities	47,498	7,343
Noncurrent operating lease liabilities	96,956	33,473
Deferred tax liabilities, net	9,268	4,509
Other long-term liabilities	8,116	2,063
Total liabilities	412,931	319,922
COMMITMENTS AND CONTINGENCIES (Note 19)
SHAREHOLDERS’ EQUITY:
Preferred stock, $.001 par value, 1,000,000 shares authorized, none issued or outstanding as of September 30, 2020 and 2021
Common stock, $.001 par value; 40,000,000 shares authorized, 28,130,312 and 28,588,863 shares issued and 21,863,291 and 21,821,842 shares outstanding as of September 30, 2020 and 2021, respectively	29	28
Additional paid-in capital	288,901	280,436
Accumulated other comprehensive income	648	829
Retained earnings	432,678	277,699
Treasury stock, at cost, 6,267,021 and 6,767,021 shares held as of September 30, 2020 and 2021, respectively	(127,364)	(103,595)
Total shareholders’ equity	594,892	455,397
Total liabilities and shareholders’ equity	$ 1,007,823	$ 775,319

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2021	Sep. 30, 2020
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	28,588,863	28,130,312
Common stock, shares outstanding	21,821,842	21,863,291
Treasury stock, shares	6,767,021	6,267,021

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenue	$ 2,063,257	$ 1,509,713	$ 1,237,153
Cost of sales	1,403,824	1,111,000	914,321
Gross profit	659,433	398,713	322,832
Selling, general and administrative expenses	449,974	291,998	262,300
Income from operations	209,459	106,715	60,532
Interest expense	3,665	9,275	11,579
Income before income tax provision	205,794	97,440	48,953
Income tax provision	50,815	22,806	12,968
Net income	$ 154,979	$ 74,634	$ 35,985
Basic net income per common share	$ 7.04	$ 3.46	$ 1.61
Diluted net income per common share	$ 6.78	$ 3.37	$ 1.57
Weighted average number of common shares used in computing net income per common share:
Basic	22,010,130	21,547,665	22,294,114
Diluted	22,859,498	22,125,338	22,881,147

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 154,979	$ 74,634	$ 35,985
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(300)	1,498	(669)
Interest rate swap contract	119
Total other comprehensive (loss) income, net of tax	(181)	1,498	(669)
Comprehensive income	$ 154,798	$ 76,132	$ 35,316

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock Issued [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Retained Earnings [Member]	Retained Earnings [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Treasury Stock [Member]
Beginning Balance at Sep. 30, 2018	$ 353,092		$ 27	$ 262,250		$ 166,071		$ (75,256)
Beginning Balance, Shares at Sep. 30, 2018			27,141,267
Net income	35,985					35,985
Purchase of treasury stock	(27,708)							(27,708)
Shares issued pursuant to employee stock purchase plan	1,022			1,022
Shares issued pursuant to employee stock purchase plan, Shares			62,287
Shares issued upon vesting of equity awards, net of minimum tax withholding	(1,216)			(1,216)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares			174,606
Shares issued upon exercise of stock options	1,390		$ 1	1,389
Shares issued upon exercise of stock options, Shares			119,275
Stock-based compensation	6,524			6,524
Stock-based compensation, Shares			11,038
Other comprehensive income (loss)	(669)				$ (669)
Ending Balance at Sep. 30, 2019	368,819		$ 28	269,969	(669)	202,455		(102,964)
Ending Balance (Accounting Standards Update 2014-09 [Member]) at Sep. 30, 2019		$ 399					$ 399
Ending Balance, Shares at Sep. 30, 2019			27,508,473
Net income	74,634					74,634
Purchase of treasury stock	(631)							(631)
Shares issued pursuant to employee stock purchase plan	1,004			1,004
Shares issued pursuant to employee stock purchase plan, Shares			94,741
Shares issued upon vesting of equity awards, net of minimum tax withholding	(1,659)			(1,659)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares			228,304
Shares issued upon exercise of stock options	3,625			3,625
Shares issued upon exercise of stock options, Shares			286,702
Stock-based compensation	7,497			7,497
Stock-based compensation, Shares			12,092
Other comprehensive income (loss)	1,498				1,498
Ending Balance at Sep. 30, 2020	$ 455,397		$ 28	280,436	829	277,699		(103,595)
Ending Balance (Accounting Standards Update 2016-02 [Member]) at Sep. 30, 2020		$ 610					$ 610
Ending Balance, Shares at Sep. 30, 2020	28,130,312		28,130,312
Net income	$ 154,979					154,979
Purchase of treasury stock	(23,769)							(23,769)
Shares issued pursuant to employee stock purchase plan	1,578			1,578
Shares issued pursuant to employee stock purchase plan, Shares			121,984
Shares issued upon vesting of equity awards, net of minimum tax withholding	(3,909)		$ 1	(3,910)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares			254,521
Shares issued upon exercise of stock options	1,048			1,048
Shares issued upon exercise of stock options, Shares			77,079
Stock-based compensation	9,749			9,749
Stock-based compensation, Shares			4,967
Other comprehensive income (loss)	(181)				(181)
Ending Balance at Sep. 30, 2021	$ 594,892		$ 29	$ 288,901	$ 648	$ 432,678		$ (127,364)
Ending Balance, Shares at Sep. 30, 2021	28,588,863		28,588,863

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 154,979	$ 74,634	$ 35,985
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	15,606	12,772	11,597
Deferred income tax provision	4,759	3,157	4,384
Loss on sale of property and equipment		366	956
Proceeds from insurance settlements	941	703	475
Stock-based compensation expense	9,749	7,497	6,524
(Increase) decrease in, net of effects of acquisitions —
Accounts receivable, net	(627)	2,584	(5,071)
Inventories, net	139,833	179,466	(84,330)
Prepaid expenses and other assets	(1,862)	101	(3,182)
(Decrease) increase in, net of effects of acquisitions —
Accounts payable	(16,128)	2,887	8,701
Contract liabilities (customer deposits)	60,960	7,411	6,804
Accrued expenses and other liabilities	5,671	13,097	4,731
Net cash (used in) provided by operating activities	373,881	304,675	(12,426)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(26,125)	(12,807)	(17,061)
Proceeds from insurance settlements	1,099		461
Cash used in acquisition of businesses, net of cash acquired	(134,205)	(19,766)	(40,713)
Purchases of investments	(2,250)
Proceeds from sale of property and equipment	350	2,464	979
Net cash used in investing activities	(161,131)	(30,109)	(56,334)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings (payments) on short-term borrowings	(162,655)	(167,672)	85,580
Proceeds from long-term debt	46,375	7,437
Payments for long-term debt	(2,404)	(41)
Payments for debt issuance costs	(1,081)
Net proceeds from issuance of common stock under incentive compensation, and employee purchase plans	2,626	4,629	2,412
Contingent acquisition consideration payments	(2,640)	(148)	(129)
Payments on tax withholdings for equity awards	(2,196)	(1,703)	(1,525)
Purchase of treasury stock	(23,769)	(631)	(27,708)
Net cash provided by (used in) financing activities	(145,744)	(158,129)	58,630
Effect of exchange rate changes on cash	(307)	545	(181)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS:	66,699	116,982	(10,311)
CASH AND CASH EQUIVALENTS, beginning of year	155,493	38,511	48,822
CASH AND CASH EQUIVALENTS, end of year	222,192	155,493	38,511
Cash paid for:
Interest	4,452	13,082	13,669
Income taxes	53,356	18,930	9,152
Non-cash items:
Accrued tax withholdings upon vesting of equity awards	2,866	1,153	1,198
Contingent consideration liabilities from acquisitions	$ 10,640	2,270	640
Accrued acquisition of property and equipment		491	$ 995
Accounting Standards Update 2016-02 [Member]
Non-cash items:
Initial operating lease right-of-use assets for adoption of ASU 2016-02		42,070
Initial current and noncurrent operating lease liabilities for adoption of ASU 2016-02		$ 43,953

Company Background and Basis of

Company Background and Basis of Presentation	12 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Company Background and Basis of Presentation	1. COMPANY BACKGROUND AND BASIS OF PRESENTATION: We believe we are the largest recreational boat and yacht retailer and superyacht services company in the world. We engage primarily in the retail sale, brokerage, and service of new and used boats, motors, trailers, marine parts and accessories and offer slip and storage accommodations in certain locations. In addition, we arrange related boat financing, insurance, and extended service contracts. We also offer the charter of power yachts in the British Virgin Islands. As of September 30, 2021, we operated through 77 retail locations in 21 states, consisting of Alabama, California, Connecticut, Florida, Georgia, Illinois, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Jersey, New York, North Carolina, Ohio, Oklahoma, Rhode Island, South Carolina, Texas, Washington, and Wisconsin. Our MarineMax Vacations operation maintains a facility in Tortola, British Virgin Islands. We also own Fraser Yachts Group and Northrop & Johnson, leading superyacht brokerage and luxury yacht services companies with operations in multiple countries. Cruisers Yachts, a wholly-owned MarineMax subsidiary, manufactures sport yacht and yachts with sales through our select retail dealership locations and through independent dealers. We are the largest retailer of Sea Ray and Boston Whaler recreational boats which are manufactured by Brunswick Corporation (“Brunswick”). Sales of new Brunswick boats accounted for approximately 27% of our revenue in fiscal 2021. Sales of new Sea Ray and Boston Whaler boats, both divisions of Brunswick, accounted for approximately 11% and 13%, respectively, of our revenue in fiscal 2021. Brunswick is a world leading manufacturer of marine products and marine engines. We have dealership agreements with Sea Ray, Boston Whaler, Harris, and Mercury Marine, all subsidiaries or divisions of Brunswick. We also have dealer agreements with Italy-based Azimut-Benetti Group’s product line for Azimut and Benetti yachts and mega yachts. These agreements allow us to purchase, stock, sell, and service these manufacturers’ boats and products. These agreements also allow us to use these manufacturers’ names, trade symbols, and intellectual properties in our operations. The agreements for Sea Ray and Boston Whaler products, respectively, appoint us as the exclusive dealer of Sea Ray and Boston Whaler boats, respectively, in our geographic markets. In addition, we are the exclusive dealer for Azimut Yachts for the entire United States. Sales of new Azimut yachts accounted for approximately 10% of our revenue in fiscal 2021. We believe non-Brunswick brands offer a migration for our existing customer base or fill a void in our product offerings, and accordingly, do not compete with the business generated from our other prominent brands. From March 2020 through June 2020, we temporarily closed certain departments or locations based on guidance from local government or health officials as a result of the COVID-19 pandemic. We are following guidelines to ensure we are safely operating as recommended. As the COVID-19 pandemic is complex and evolving rapidly with many unknowns, the Company will continue to monitor ongoing developments and respond accordingly. Management expects its business, across all of its geographies, will be impacted to some degree, but the significance of the impact of the COVID-19 pandemic on the Company’s business and the duration for which it may have an impact cannot be determined at this time. As is typical in the industry, we deal with most of our manufacturers, other than Sea Ray, Boston Whaler, and Azimut Yachts, under renewable annual dealer agreements, each of which gives us 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 our results of operations. Although there are a limited number of manufacturers of the type of boats and products that we sell, we believe that adequate alternative sources would be available to replace any manufacturer other than Sea Ray, Boston Whaler, and Azimut as a product source. These alternative sources may not be available at the time of any interruption, and alternative products may not be available at comparable terms, which could affect operating results adversely. General economic conditions and consumer spending patterns can negatively impact our operating results. Unfavorable local, regional, national, or global economic developments or uncertainties regarding future economic prospects could reduce consumer spending in the markets we serve and adversely affect our business. Economic conditions in areas in which we operate dealerships, particularly Florida in which we generated approximately 54%, 54% and 50% of our revenue during fiscal 2019, 2020, and 2021, respectively, can have a major impact on our operations. Local influences, such as corporate downsizing, military base closings, inclement weather such as Hurricane Sandy in 2012 or Hurricanes Harvey and Irma in 2017, environmental conditions, and specific events, such as the BP oil spill in the Gulf of Mexico in 2010, also could adversely affect, and in certain instances have adversely affected, our operations in certain markets. In an economic downturn, consumer discretionary spending levels generally decline, at times resulting in disproportionately large reductions in the sale of luxury goods. Consumer spending on luxury goods also may decline as a result of lower consumer confidence levels, even if prevailing economic conditions are favorable. As a result, an economic downturn would likely impact us more than certain of our competitors due to our strategic focus on a higher end of our market. Although we have expanded our operations during periods of stagnant or modestly declining industry trends, the cyclical nature of the recreational boating industry or the lack of industry growth may adversely affect our business, financial condition, and results of operations. Any period of adverse economic conditions or low consumer confidence is likely to have a negative effect on our business. Historically, in periods of lower consumer spending and depressed economic conditions, we have, among other things, substantially reduced our acquisition program, delayed new store openings, reduced our inventory purchases, engaged in inventory reduction efforts, closed a number of our retail locations, reduced our headcount, and amended and replaced our credit facility. Acquisitions remain an important strategy for us, and, subject to a number of conditions, including macro-economic conditions and finding attractive acquisition targets, we plan to continue to explore opportunities through this strategy. In order to provide comparability between periods presented, certain amounts have been reclassified from the previously reported consolidated financial statements to conform to the consolidated financial statement presentation of the current period.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Significant Accounting Policies	2. SIGNIFICANT ACCOUNTING POLICIES: Cash and Cash Equivalents We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents. Vendor Consideration Received We classify interest assistance received from manufacturers as a reduction of inventory cost and related cost of sales. Amounts received by us under our co-op assistance programs from our manufacturers are netted against related advertising expenses. Our consideration received from our vendors contains uncertainties because the calculation requires management to make assumptions and to apply judgment regarding a number of factors, including our ability to collect amounts due from vendors and the ability to meet certain criteria stipulated by our vendors. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate our vendor considerations which would result in a material effect on our operating results. Inventories Inventories are stated at the lower of cost or net realizable value. The cost of inventories purchased from our vendors consist of the amount paid to acquire the inventory, net of vendor consideration and purchase discounts, the cost of equipment added, reconditioning costs, and transportation costs relating to acquiring inventory for sale. Trade-in used boats are initially recorded at fair value and adjusted for reconditioning and other costs. The cost of inventories that are manufactured by the Company consist of material, labor, and manufacturing overhead. Unallocated overhead and abnormal costs are expensed as incurred. New and used boats, motors, and trailers inventories are accounted for on a specific identification basis. Raw materials and parts, accessories, and other inventories are accounted for on an average cost basis. We utilize our historical experience, the aging of the inventories, and our consideration of current market trends as the basis for determining a lower of cost or net realizable value. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate our valuation allowance which would result in a material effect on our operating results. As of September 30, 2020 and 2021, our valuation allowance for new and used boat, motor and trailer inventories was $2.4 million and $0.4 million, respectively. If events occur and market conditions change, causing the fair value to fall below carrying value, the valuation allowance could increase. Property and Equipment We record property and equipment at cost, net of accumulated depreciation, and depreciate property and equipment over their estimated useful lives using the straight-line method. We capitalize and amortize leasehold improvements over the lesser of the life of the lease or the estimated useful life of the asset. Useful lives for purposes of computing depreciation are as follows: Years Buildings and improvements 5-40 Machinery and equipment 3-10 Furniture and fixtures 5-10 Vehicles 3-5 We remove the cost of property and equipment sold or retired and the related accumulated depreciation from the accounts at the time of disposition and include any resulting gain or loss in the accompanying Consolidated Statements of Operations. We charge maintenance, repairs, and minor replacements to operations as incurred, and we capitalize and amortize major replacements and improvements over their useful lives. Goodwill We account for acquisitions in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 805, “Business Combinations” (“ASC 805”), and goodwill in accordance with ASC 350, “Intangibles — Goodwill and Other” (“ASC 350”). For business combinations, the excess of the purchase price over the estimated fair value of net assets acquired in a business combination is recorded as goodwill. In accordance with ASC 350, we test goodwill for impairment at least annually and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Our annual impairment test is performed during the third fiscal quarter. If the carrying amount of a reporting unit’s goodwill exceeds its fair value we recognize an impairment loss in accordance with ASC 350. Based upon our most recent analysis, we determined through our qualitative assessment that it is not “more likely than not” that the fair values of our reporting units are less than their carrying values. As a result, we were not required to perform a quantitative goodwill impairment test. Impairment of Long-Lived Assets FASB ASC 360-10-40, “Property, Plant, and Equipment — Impairment or Disposal of Long-Lived Assets” (“ASC 360-10-40”), requires that long-lived assets, such as property and equipment and purchased intangibles subject to amortization, be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of the asset (or asset group) is measured by comparison of its carrying amount to undiscounted future net cash flows the asset (or asset group) is expected to generate over the remaining life of the asset (or asset group). If such assets are considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the asset (or asset group) exceeds its fair market value. Estimates of expected future cash flows represent our best estimate based on currently available information and reasonable and supportable assumptions. Our impairment loss calculations contain uncertainties because they require us to make assumptions and to apply judgment in order to estimate expected future cash flows. Any impairment recognized in accordance with ASC 360-10-40 is permanent and may not be restored. Based upon our most recent analysis, we believe no impairment of long-lived assets existed as of September 30, 2021. Insurance We retain varying levels of risk relating to the insurance policies we maintain, most significantly, workers’ compensation insurance and employee medical benefits. We are responsible for the claims and losses incurred under these programs, limited by per occurrence deductibles and paid claims or losses up to pre-determined maximum exposure limits. Our third-party insurance carriers pay any losses above the pre-determined exposure limits. We estimate our liability for incurred but not reported losses using our historical loss experience, our judgment, and industry information. Revenue Recognition The majority of our revenue is from contracts with customers for the sale of boats, motors, and trailers. We recognize revenue from boat, motor, and trailer sales upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance of the boat, motor, and trailer by the customer and the satisfaction of our performance obligations. The transaction price is determined with the customer at the time of sale. Customers may trade in a used boat to apply toward the purchase of a new or used boat. The trade-in is a type of noncash consideration measured at fair value, based on external and internal observable and unobservable market data and applied as payment to the contract price for the purchased boat. At the time of acceptance, the customer is able to direct the use of, and obtain substantially all of the benefits of the boat, motor, or trailer. We recognize commissions earned from a brokerage sale when the related brokerage transaction closes upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance by the customer. We do not directly finance our customers’ boat, motor, or trailer purchases. In many cases, we assist with third-party financing for boat, motor, and trailer sales. We recognize commissions earned by us for placing notes with financial institutions in connection with customer boat financing when we recognize the related boat sales. Pursuant to negotiated agreements with financial institutions, we are charged back for a portion of these fees should the customer terminate or default on the related finance contract before it is outstanding for a stipulated minimum period of time. We base the chargeback allowance, which was not material to the consolidated financial statements taken as a whole as of September 30, 2020 and 2021, on our experience with repayments or defaults on the related finance contracts. We recognize variable consideration from commissions earned on extended warranty service contracts sold on behalf of third-party insurance companies at generally the later of customer acceptance of the service contract terms as evidenced by contract execution or recognition of the related boat sale. We also recognize variable consideration from marketing fees earned on insurance products sold by third-party insurance companies at the later of customer acceptance of the insurance product as evidenced by contract execution or when the related boat sale is recognized. We recognize revenue from parts and service operations (boat maintenance and repairs) over time as services are performed. 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 short period of time from contract inception. We satisfy our performance obligations, transfer control, and recognize revenue over time for parts and service operations because we are creating a contract asset with no alternative use and we have an enforceable right to payment for performance completed to date. Contract assets primarily relate to our right to consideration for work in process not yet billed at the reporting date associated with maintenance and repair services. We use an input method to recognize revenue and measure progress based on labor hours expended to satisfy the performance obligation at average labor rates. We have determined labor hours expended to be the relevant measure of work performed to complete the maintenance and repair service for the customer. As a practical expedient, because repair and maintenance service contracts have an original duration of one year or less, we do not consider the time value of money, and we do not disclose estimated revenue expected to be recognized in the future for performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period or when we expect to recognize such revenue. Contract assets, recorded in prepaid expenses and other current assets, totaled approximately $2.6 million and $5.7 million as of September 30, 2020 and September 30, 2021, respectively. We recognize revenue from the sale of our manufactured yachts when control of the yacht is transferred to the dealer, which is generally upon acceptance by the dealer. At the time of acceptance, the dealer is able to direct the use of, and obtain substantially all of the benefits of the yacht. We have elected to record shipping and handling activities that occur after the dealer has obtained control of the yacht as a fulfillment activity. Contract liabilities primarily consist of customer deposits. We recognize contract liabilities (customer deposits) as revenue at the time of acceptance and the transfer of control to the customers. Total contract liabilities of approximately $24.3 million recorded as of September 30, 2019 were recognized in revenue during the fiscal year ended September 30, 2020. Total contract liabilities of approximately $31.8 million recorded as of September 30, 2020 were recognized in revenue during the fiscal year ended September 30, 2021. We recognize deferred revenue from service operations and slip and storage services over time on a straight-line basis over the term of the contract as our performance obligations are met. We recognize income from the rentals of chartering power yachts over time on a straight-line basis over the term of the contract as our performance obligations are met. The following table sets forth percentages on the timing of revenue recognition by reportable segment for the fiscal years ended September 30, Retail Operations Product Manufacturing 2019 2020 2021 2019 2020 2021 Goods and services transferred at a point in time 90.8 % 92.7 % 91.6 % — — 100.0 % Goods and services transferred over time 9.2 % 7.3 % 8.4 % — — — Revenue 100.0 % 100.0 % 100.0 % — — 100.0 % The following tables set forth our revenue disaggregated into categories that depict the nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors for the fiscal years ended September 30, 2021 Retail Operations Product Manufacturing Total New boat sales 70.3 % 100.0 % 70.5 % Used boat sales 11.0 % — 10.9 % Maintenance, repair, storage, and charter services 7.1 % — 7.1 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.2 % — 3.2 % Brokerage sales 5.7 % — 5.6 % Revenue 100.0 % 100.0 % 100.0 % 2020 Retail Operations Product Manufacturing Total New boat sales 70.2 % — 70.2 % Used boat sales 15.1 % — 15.1 % Maintenance, repair, storage, and charter services 6.4 % — 6.4 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.0 % — 3.0 % Brokerage sales 2.6 % — 2.6 % Revenue 100.0 % — 100.0 % 2019 Retail Operations Product Manufacturing Total New boat sales 70.1 % — 70.1 % Used boat sales 14.9 % — 14.9 % Maintenance, repair, storage, and charter services 6.9 % — 6.9 % Finance and insurance products 2.6 % — 2.6 % Parts and accessories 3.6 % — 3.6 % Brokerage sales 1.9 % — 1.9 % Revenue 100.0 % — 100.0 % Stock-Based Compensation We account for our stock-based compensation plans following the provisions of FASB ASC 718, “Compensation — Stock Compensation” (“ASC 718”). In accordance with ASC 718, we use the Black-Scholes valuation model for estimating the fair value of stock option grants and shares purchased under our Employee Stock Purchase Plan. We measure compensation for restricted stock awards and restricted stock units at fair value on the grant date based on the number of shares expected to vest and the quoted market price of our common stock on the grant date. We recognize compensation cost for all awards in operations, net of estimated forfeitures, on a straight-line basis over the requisite service period for each separately vesting portion of the award. Foreign Currency Transactions For the Company’s foreign subsidiaries that use a currency other than the U.S. dollar as their functional currency, the assets and liabilities are translated at exchange rates in effect at the balance sheet date, and revenues and expenses are translated at the weighted average exchange rate for the period. The effects of these translation adjustments are reported in accumulated other comprehensive income. Gains and losses arising from transactions denominated in a currency other than the functional currency of the entity involved are included in operating income. No amounts were reclassified out of accumulated other comprehensive income in fiscal 2021. Advertising and Promotional Cost We expense advertising and promotional costs as incurred and include them in selling, general and administrative expenses in the accompanying Consolidated Statements of Operations. We net amounts received by us under our co-op assistance programs from our manufacturers against the related advertising expenses. Total advertising and promotional expenses approximated $18.8 million, $14.0 million and $14.8 million, net of related co-op assistance, which was not material to the consolidated financial statements, for the fiscal years ended September 30, 2019, 2020, and 2021, respectively. Income Taxes We account for income taxes in accordance with FASB ASC 740, “Income Taxes” (“ASC 740”). Under ASC 740, we recognize deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. We measure deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which we expect those temporary differences to be recovered or settled. We record valuation allowances to reduce our deferred tax assets to the amount expected to be realized by considering all available positive and negative evidence. Concentrations of Credit Risk Financial instruments, which potentially subject us to concentrations of credit risk, consist principally of cash and cash equivalents and accounts receivable. Concentrations of credit risk with respect to our cash and cash equivalents are limited primarily to amounts held with financial institutions. Concentrations of credit risk arising from our receivables are limited primarily to amounts due from manufacturers and financial institutions. Use of Estimates and Assumptions The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates made by us in the accompanying consolidated financial statements include valuation allowances, valuation of goodwill and intangible assets, valuation of long-lived assets, valuation of contingent consideration liabilities, and valuation of accruals. Actual results could differ materially from those estimates. Segment Reporting Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two new reportable segments: Retail Operations and Product Manufacturing. The change in reportable segments had no impact on the Company’s previously reported historical consolidated financial statements. Where applicable, all prior periods presented have been revised to conform to the change in reportable segments. See Note 21.

New Accounting Pronouncements

New Accounting Pronouncements	12 Months Ended
	Sep. 30, 2021
Accounting Changes And Error Corrections [Abstract]
New Accounting Pronouncements	3. NEW ACCOUNTING PRONOUNCEMENTS: Accounting for Leases We adopted Accounting Standards Update (“ASU”) 2016-02, “Leases (Topic 842)” (“ASU 2016-02”) effective October 1, 2019 the first day of fiscal 2020. We elected the package of practical expedients available under the transition guidance within the new standard, which among other things, allowed us to carry forward the historical lease classification of our existing leases. Consequently, on adoption, we recognized additional operating lease liabilities of $44.0 million and right-of-use (“ROU”) assets of $42.1 million. The new standard also provides practical expedients for an entity’s ongoing accounting. We elected the short-term lease recognition exemption for all leases that qualify. As a result, for those leases that qualify, we will not recognize ROU assets or lease liabilities, and we did not recognize ROU assets or lease liabilities for existing short-term leases of those assets in transition. We also elected the practical expedient to not separate lease and non-lease components. We recognized a net after-tax cumulative effect adjustment to retained earnings of $ as of the date of adoption. Other New Pronouncements In August 2018, the FASB issued ASU 2018-15, “Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” (“ASU 2018-15”), which aligns the accounting for implementation costs incurred in a cloud computing arrangement that is a service contract with the guidance on capitalizing costs associated with developing or obtaining internal-use software. The guidance amends ASC 350 to include in its scope implementation costs of a cloud computing arrangement that is a service contract and clarifies that a customer should apply ASC 350 to determine which implementation costs should be capitalized in such a cloud computing arrangement. This guidance is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2019. We adopted ASU 2018-05 effective October 1, 2020 the first day of fiscal 2021. The adoption of this standard had no impact on our consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, “ Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ” (“ASU 2016-13”) . ASU 2016-13 requires entities to report “expected” credit losses on financial instruments and other commitments to extend credit rather than the current “incurred loss” model. These expected credit losses for financial assets held at the reporting date are to be based on historical experience, current conditions, and reasonable and supportable forecasts. This ASU will also require enhanced disclosures relating to significant estimates and judgments used in estimating credit losses, as well as the credit quality. This guidance is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2019. We adopted ASU 2016-13 effective October 1, 2020 the first day of fiscal 2021. The adoption of this standard had no impact on our consolidated financial statements.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value Measurements	4. FAIR VALUE MEASUREMENTS: The Company uses valuation approaches that maximize the use of observable inputs and minimize the use of unobservable inputs to the extent possible. The Company determines fair value based on assumptions that market participants would use in pricing an asset or liability in the principal or most advantageous market. When considering market participant assumptions in fair value measurements, the following fair value hierarchy distinguishes between observable and unobservable inputs, which are categorized in one of the following levels: Level 1 - Unadjusted quoted prices in active markets for identical assets or liabilities accessible to the reporting entity at the measurement date. Level 2 - Other than quoted prices included in Level 1 inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability. Level 3 - Unobservable inputs for the asset or liability used to measure fair value to the extent that observable inputs are not available, thereby allowing for situations in which there is little, if any, market activity for the asset or liability at measurement date. The following tables summarize the Company’s financial assets and liabilities measured at fair value in the accompanying Consolidated Balance Sheets as of September 30, 2021 Level 1 Level 2 Level 3 Total (Amounts in thousands) Assets: Interest rate swap contract $ — $ 150 $ — $ 150 Liabilities: Contingent consideration liabilities $ — $ — $ 12,364 $ 12,364 2020 Level 1 Level 2 Level 3 Total (Amounts in thousands) Liabilities: Contingent consideration liabilities $ — $ — $ 2,960 $ 2,960 There were no The fair value of the Company’s interest rate swap contract is calculated as the present value of expected future cash flows, determined on the basis of forward interest rates and present value factors. The inputs to the fair value measurements reflect Level 2 inputs. The interest rate swap contract balance is included in other long-term assets in the accompanying We estimate the fair value of our contingent consideration liabilities using a probability-weighted discounted cash flow model. The contingent consideration liabilities are estimated based on forecasted pre-tax earnings as a base scenario (among other assumptions) subject to a Monte Carlo simulation. The fair value of the contingent consideration liabilities, which reflect Level 3 inputs, is reassessed on a quarterly basis. The contingent consideration liabilities balance is included in accrued expenses and other long-term liabilities in the accompanying The following table sets forth the changes in fair value of our contingent consideration liabilities, which reflect Level 3 inputs, for the fiscal the years ended September 30, 2020 and 2021: Contingent Consideration Liabilities (Amounts in thousands) Balance as of September 30, 2019 $ 845 Additions from business acquisitions 2,270 Settlement of contingent consideration liabilities (148 ) Change in fair value and net present value of contingency (7 ) Balance as of September 30, 2020 $ 2,960 Additions from business acquisitions 10,640 Settlement of contingent consideration liabilities (3,000 ) Change in fair value and net present value of contingency 1,764 Balance as of September 30, 2021 $ 12,364 We determined the carrying value of cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, short-term borrowings, and the revolving mortgage facility approximate their fair values because of the nature of their terms and current market rates of these instruments. The fair value of our mortgage facilities, which are not carried at fair value in the accompanying Consolidated Balance Sheets, was determined using Level 2 inputs based on the discounted cash flow method. We estimate the fair value of our mortgage facilities using a present value technique based on current market interest rates for similar types of financial instruments that reflect Level 2 inputs. The following table summarizes the carrying value and fair value of our mortgage facilities as of September 30, 2020 2021 Fair Value Carrying Value Fair Value Carrying Value (Amounts in thousands) Mortgage facility payable to Flagship Bank $ 7,396 $ 7,396 $ 6,872 $ 6,899 Mortgage facility payable to Seacoast National Bank — — 17,529 17,675 Mortgage facility payable to Hancock Whitney Bank — — 27,089 27,106

Accounts Receivable

Accounts Receivable	12 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Accounts Receivable	5. ACCOUNTS RECEIVABLE: Trade receivables consist primarily of receivables from financial institutions, which provide funding for customer boat financing and amounts due from financial institutions earned from arranging financing with our customers. We normally collect these receivables within 30 days of the sale. Trade receivables also include amounts due from customers on the sale of boats, parts, service, and storage. Amounts due from manufacturers represent receivables for various manufacturer programs and parts and service work performed pursuant to the manufacturers’ warranties. Accounts receivable are presented net of an allowance for expected credit losses. The allowance for expected credit losses, which was not material to the consolidated financial statements as of September 30, 2020 or 2021, was based on our consideration of past collection experience, current information, and reasonable and supportable forecasts. Accounts receivable, net consisted of the following as of September 30, 2020 2021 (Amounts in thousands) Trade receivables, net $ 31,289 $ 38,953 Amounts due from manufacturers 7,575 7,344 Other receivables 1,331 1,354 Accounts receivable, net $ 40,195 $ 47,651

Inventories

Inventories	12 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Inventories	6. INVENTORIES: Inventories, net consisted of the following as of September 30, 2020 2021 (Amounts in thousands) New and used boats, motors, and trailers $ 289,291 $ 193,888 Parts, accessories, and other 8,711 13,779 Work-in-process — 11,358 Raw materials — 11,959 Inventories, net $ 298,002 $ 230,984

Property and Equipment

Property and Equipment	12 Months Ended
	Sep. 30, 2021
Property Plant And Equipment [Abstract]
Property and Equipment	7. PROPERTY AND EQUIPMENT: Property and equipment, net consisted of the following as of September 30, 2020 2021 (Amounts in thousands) Land $ 55,549 $ 57,330 Buildings and improvements 115,394 137,271 Machinery and equipment 39,416 54,510 Furniture and fixtures 5,233 5,897 Vehicles 12,612 18,269 Gross property and equipment 228,204 273,277 Less: accumulated depreciation and amortization (86,270 ) (97,814 ) Property and equipment, net $ 141,934 $ 175,463 Depreciation and amortization expense on property and equipment totaled approximately $11.6 million, $12.8 million, and $13.9 million, for the fiscal years ended September 30, 2019, 2020, and 2021, respectively.

Leases

Leases	12 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Leases	8. LEASES: Substantially all of the leases that we enter into are real estate leases. Consolidated Balance Sheets. Our real estate and equipment leases often require that we pay maintenance in addition to rent. Additionally, our real estate leases generally require payment of real estate taxes and insurance. Maintenance, real estate taxes, and insurance payments are generally variable and based on actual costs incurred by the lessor. Therefore, these amounts are not included in the consideration of the contract when determining the ROU asset and lease liability, but are reflected as variable lease expenses. Substantially all of our lease agreements include fixed rental payments. Certain of our lease agreements include fixed rental payments that are adjusted periodically by a fixed rate or changes in an index. The fixed payments, including the effects of changes in the fixed rate or amount, and renewal options reasonably certain to be exercised, are included in the measurement of the related lease liability. Most of our real estate leases include one or more options to renew, with renewal terms that can extend the lease term from one to five years or more. The exercise of lease renewal options is at our sole discretion. If it is reasonably certain that we will exercise such options, the periods covered by such options are included in the lease term and are recognized as part of our right of use assets and lease liabilities. The depreciable life of assets and leasehold improvements are limited by the expected lease term, which includes renewal options reasonably certain to be exercised . For our incremental borrowing rate, we generally use a portfolio approach to determine the discount rate for leases with similar characteristics . As of September 30, 2021, maturities of lease liabilities by fiscal year are summarized as follows: (Amounts in thousands) 2022 $ 16,080 2023 14,913 2024 12,714 2025 10,315 2026 9,947 Thereafter 88,190 Total lease payments 152,159 Less: interest (44,633 ) Present value of lease liabilities $ 107,526 The following table sets forth s upplemental cash flow information related to leases for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ — $ 10,209 $ 16,917 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ — $ 3,811 $ 74,097 The Company reports the amortization of ROU assets and the change in operating lease liabilities on a net basis in accrued expenses and other liabilities in the accompanying Consolidated Statements of Cash Flows.

Goodwill Intangible Assets and

Goodwill Intangible Assets and Other Long Term Assets	12 Months Ended
	Sep. 30, 2021
Goodwill Intangible Assets And Other Long Term Assets Disclosure [Abstract]
Goodwill Intangible Assets and Other Long Term Assets	9. GOODWILL, INTANGIBLE ASSETS, AND OTHER LONG-TERM ASSETS: In July 2021 we purchased Nisswa Marine, Inc. a full-service dealer located in Nisswa, Minnesota. Goodwill and other intangible assets associated with the Nisswa Marine acquisition was approximately $15.3 million In May 2021, we purchased all of the outstanding equity of KCS International Holdings, Inc., and certain affiliates (“Cruisers Yachts”) for an aggregate purchase price of $62.7 million, subject to certain customary closing and post-closing adjustments, and net working capital adjustments including certain holdbacks. The former owners of Cruisers Yachts are subject to certain customary post-closing covenants and indemnities. The following table summarizes the consideration paid for Cruisers Yachts and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Fair value of total consideration transferred $ 61,448 Recognized amounts of identifiable assets acquired and liabilities assumed: Current assets, net of cash acquired of $5,993 $ 29,869 Property and equipment 12,126 Intangible assets 4,602 Current liabilities (25,283 ) Total identifiable net assets acquired: 21,314 Goodwill $ 40,134 Total $ 61,448 The fair value of current assets acquired includes accounts receivable and inventory of approximately $3.1 million and $26.2 million, respectively. The fair value of current liabilities assumed includes short-term borrowings of approximately $11.7 million, accrued expenses of approximately $10.3 million, and accounts payable of approximately $3.0 million. The intangible assets acquired include the trade name and customer relationships. The goodwill represents the assembled workforce, acquired capabilities, and future economic benefits resulting from the acquisition. The majority of the goodwill is expected to be deductible for tax purposes. The customer relationships have a weighted average useful life of approximately 2.0 years. The tradename has an indefinite life. Our results for fiscal 2021 include results from Cruisers Yachts between May 2, 2021 and September 30, 2021. Refer to Note 21 for disclosure of the revenues and income from operations. We have not disclosed the pro forma effect of Cruisers Yachts’ financial information for fiscal 2020 and prior to acquisition on May 2, 2021, because it is not practical to obtain for comparative purposes and as such is not presented because Cruisers Yachts’ historical monthly internal accounting and reporting processes and practices would not provide complete information sufficient for the purposes of this pro forma disclosure. In October 2020, we purchased all of the outstanding equity of Skipper Marine Holdings, Inc., and certain affiliates (“SkipperBud’s”) for an aggregate purchase price of $55.0 million, subject to certain customary closing and post-closing adjustments, and net working capital adjustments including certain holdbacks. In addition, the former equity owners of SkipperBud’s (“Skippers Sellers”), have the opportunity to earn additional consideration as part of an contingent consideration liability subject to the achievement of certain pre-tax earnings levels. The maximum amount of consideration that can be paid under the contingent consideration liability is approximately $9.3 million. The fair value of $8.2 million of the contingent consideration liability arrangement was estimated by a third party valuation expert by applying an income valuation approach. The contingent consideration liability was estimated based on forecasted pre-tax earnings as a base scenario (among other assumptions) subject to a Monte Carlo simulation. The Skippers Sellers are subject to certain customary post-closing covenants and indemnities. The acquisition of SkipperBud’s enhances our sales, brokerage, service and marina/storage presence in the Great Lakes region and West Coast of the Unites States. The following table summarizes the consideration paid for SkipperBud’s and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Cash purchase price and net working capital adjustments, net of cash acquired of $30,615 $ 50,261 Contingent consideration liability 8,200 Fair value of total consideration transferred $ 58,461 Recognized amounts of identifiable assets acquired and liabilities assumed: Current assets, net of cash acquired of $30,615 $ 50,688 Property and equipment 4,859 Intangible assets 1,978 Current liabilities (55,427 ) Total identifiable net assets acquired: 2,098 Goodwill $ 56,363 Total $ 58,461 The fair value of current assets acquired includes accounts receivable and inventory of approximately $5.4 million and $42.3 million, respectively. The fair value of current liabilities assumed includes short-term borrowings of approximately $30.5 million, accrued expenses of approximately $14.6 million, and customer deposits of approximately $7.5 million. We recorded approximately $56.4 million in goodwill and approximately $2.0 million of other identifiable intangibles (trade name and customer relationships) in connection with the SkipperBud’s acquisition. The goodwill represents our enhanced geographic reach and brand infrastructure in the Great Lakes region and West Coast of the Unites States. The majority of the goodwill is expected to be deductible for tax purposes. The intangible assets have a weighted average useful life of approximately 3.3 years. For fiscal 2021, SkipperBud’s revenue was approximately $302.6 million and income before taxes was approximately $31.3 million. We have not disclosed the pro forma effect of SkipperBud’s financial information for fiscal 2020 because it is not practical to obtain for comparative purposes and as such is not presented because SkipperBud’s historical monthly internal accounting and reporting processes and practices would not provide complete information sufficient for the purposes of this pro forma disclosure. In July 2020, we purchased Northrop & Johnson, a leading superyacht brokerage and services company. In March 2020, we purchased Boatyard, a digital platform with an expansive range of on-demand services to streamline the boating experience by qualified service providers from a smartphone. Goodwill and other intangible assets increased, primarily due to acquisitions, by $20.2 million and $116.8 million, for the fiscal years ended September 30, 2020 and 2021, respectively. These acquisitions have resulted in the recording of goodwill for tax purposes of $16.8 million and $110.8 million, for the fiscal years ended September 30, 2020 and 2021, respectively. In total, current and previous acquisitions have resulted in the recording of $84.3 million and $201.1 million in goodwill and other intangible assets as of September 30, 2020 and 2021, respectively. Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two new reportable segments: Retail Operations and Product Manufacturing. As a result, the Company allocated goodwill to its reporting units within the Company’s two reportable segments. The following table sets forth the changes in carrying amount of goodwill by reportable segment for the fiscal years ended September 30, 2020 and 2021: Retail Operations Product Manufacturing Total (Amounts in thousands) Balance as of September 30, 2019 $ 64,006 $ — $ 64,006 Goodwill acquired 19,614 — 19,614 Foreign currency translation 620 — 620 Balance as of September 30, 2020 $ 84,240 $ — $ 84,240 Goodwill acquired 71,306 40,134 111,440 Foreign currency translation (117 ) — (117 ) Balance as of September 30, 2021 $ 155,429 $ 40,134 $ 195,563 Other long-term assets as of September 30, 2020 and 2021 of $7.8 million and $8.8 million, respectively, are primarily long-term deposits and other long-term investments.

Accrued Expenses

Accrued Expenses	12 Months Ended
	Sep. 30, 2021
Accounts Payable And Accrued Liabilities Current [Abstract]
Accrued Expenses	10. ACCRUED EXPENSES: Accrued expenses consisted of the following as of September 30, 2020 2021 (Amounts in thousands) Payroll accruals $ 23,142 $ 42,138 Customer and storage accruals 11,381 17,390 Sales and other taxes payable 5,829 8,462 Other accruals 11,264 18,604 Accrued expenses $ 51,616 $ 86,594

Short-Term Borrowings and Long-

Short-Term Borrowings and Long-Term Debt	12 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Short-Term Borrowings and Long-Term Debt	11. SHORT-TERM BORROWINGS AND LONG-TERM DEBT: Short-term Borrowings In May 2020, we entered into a Loan and Security Agreement (the “Credit Facility”), with Wells Fargo Commercial Distribution Finance LLC, M&T Bank, Bank of the West, and Truist Bank. In July 2021, the Company amended its Credit Facility to increase the borrowing availability to $500.0 million, extend the term to expire by one year to July 2024 July 2024 The Credit Facility has certain financial covenants as specified in the agreement. The covenants include provisions that our leverage ratio must not exceed 2.75 to 1.0 and that our current ratio must be greater than 1.2 to 1.0. The interest rate for amounts outstanding under the Credit Facility is 345 basis points plus the greater of 75 basis points or the one-month LIBOR. There is an unused line fee of ten basis points on the unused portion of the Credit Facility. In October 2021, we amended the Credit Facility to allow for the transition of the benchmark interest rate used from LIBOR to the Secured Overnight Finance Rate (SOFR). As of September 30, 2021, we were in compliance with all covenants under the Credit Facility. New inventory borrowing eligibility will generally mature 1,080 days from the original invoice date. Used inventory borrowing eligibility will generally mature 361 days from the date we acquire the used inventory. The collateral for the Credit Facility is all of our personal property with certain limited exceptions. None of our real estate has been pledged for collateral for the Credit Facility. As of September 30, 2021, our indebtedness associated with financing our inventory and working capital needs totaled approximately $24.1 million, and included unamortized debt issuance costs of approximately $0.2 million. As of September 30, 2020 and 2021, the interest rate on the outstanding short-term borrowings was approximately 4.20%. As of September 30, 2021, our additional available borrowings under our Credit Facility were approximately $79.0 million based upon the outstanding borrowing base availability. As is common in our industry, we receive interest assistance directly from boat manufacturers, including Brunswick. The interest assistance programs vary by manufacturer, but generally include periods of free financing or reduced interest rate programs. The interest assistance may be paid directly to us or our lender depending on the arrangements the manufacturer has established. We classify interest assistance received from manufacturers as a reduction of inventory cost and related cost of sales. The availability and costs of borrowed funds can adversely affect our ability to obtain adequate boat inventory and the holding costs of that inventory as well as the ability and willingness of our customers to finance boat purchases. However, we rely on our Credit Facility to purchase our inventory of boats. The aging of our inventory limits our borrowing capacity as defined curtailments reduce the allowable advance rate as our inventory ages. Our access to funds under our Credit Facility also depends upon the ability of our lenders to meet their funding commitments, particularly if they experience shortages of capital or experience excessive volumes of borrowing requests from others during a short period of time. Unfavorable economic conditions, weak consumer spending, turmoil in the credit markets, and lender difficulties, among other potential reasons, could interfere with our ability to utilize our Credit Facility to fund our operations. Any inability to utilize our Credit Facility could require us to seek other sources of funding to repay amounts outstanding under the credit agreements or replace or supplement our credit agreements, which may not be possible at all or under commercially reasonable terms. Similarly, decreases in the availability of credit and increases in the cost of credit adversely affect the ability of our customers to purchase boats from us and thereby adversely affect our ability to sell our products and impact the profitability of our finance and insurance activities. Long-term Debt The below table summarizes the Company's long-term debt. September 30, 2021 (Amounts in thousands) Mortgage facility payable to Flagship Bank bearing interest at 2.25% (prime minus 100 basis points with a floor of 2.00%). Requires monthly principal and interest payments with a balloon payment of approximately $4.0 million due August 2027 $ 6,899 Mortgage facility payable to Seacoast National Bank bearing interest at 3.00% (greater of 3.00% or prime minus 62.5 basis points). Requires monthly interest payments for the first year and then monthly principal and interest payments with a balloon payment of approximately $6.0 million due September 2031 17,675 Mortgage facility payable to Hancock Whitney Bank bearing interest at 2.63% (prime minus 62.5 basis points with a floor of 2.25%). Requires monthly principal and interest payments with a balloon payment of approximately $15.5 million due November 2027 are hedged with an interest rate swap contract with a fixed rate of 3.20%. 27,106 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 3.00% (prime minus 25 basis points with a floor of 3.00%). Facility matures in October 2027 under the facility were approximately $26.1 million at September 30, 2021. — Total long-term debt 51,680 Less: current portion (3,587 ) Less: unamortized portion of debt issuance costs (595 ) Long-term debt, net current portion and unamortized debt issuance costs $ 47,498 As of September 30, 2020, we had approximately $7.4 million under the mortgage facility payable to Flagship Bank. As of September 30, 2021, the aggregate maturities of long-term debt by fiscal year are summarized as follows: (Amounts in thousands) 2022 $ 3,587 2023 3,587 2024 3,587 2025 3,587 2026 3,587 Thereafter 33,745 Total long-term debt $ 51,680

Income Taxes

Income Taxes	12 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	12. INCOME TAXES: Income before income tax provision consisted of the following components for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Income before income tax provision: United States $ 46,986 $ 94,854 $ 202,643 Other 1,967 2,586 3,151 Total $ 48,953 $ 97,440 $ 205,794 The components of our provision from income taxes consisted of the following for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Current provision: Federal $ 7,933 $ 17,654 $ 38,028 Foreign 516 654 1,516 State 135 1,365 6,527 Total current provision $ 8,584 $ 19,673 $ 46,071 Deferred provision: Federal $ 2,285 $ 2,262 $ 4,201 Foreign — — — State 2,099 871 543 Total deferred provision 4,384 3,133 4,744 Total income tax provision $ 12,968 $ 22,806 $ 50,815 Below is a reconciliation of the statutory federal income tax rate to our effective tax rate for the fiscal years ended September 30, 2019 2020 2021 Federal tax provision 21.0 % 21.0 % 21.0 % State taxes, net of federal benefit 4.1 % 3.1 % 3.7 % Stock-based compensation — (0.5 )% (0.7 )% Valuation allowance (0.1 )% (0.2 )% — Foreign rate differential 0.2 % 0.1 % 0.1 % Other 1.3 % (0.1 )% 0.6 % Effective tax rate 26.5 % 23.4 % 24.7 % Deferred income taxes reflect the impact of temporary differences between the amount of assets and liabilities recognized for financial reporting purposes and such amounts recognized for income tax purposes. The tax effects of these temporary differences representing the components of deferred tax assets as of September 30, 2020 2021 (Amounts in thousands) Deferred tax assets: Inventories $ 808 $ 771 Operating lease liabilities 9,926 25,924 Accrued expenses 640 1,225 Stock-based compensation 2,170 2,810 Tax loss carryforwards 810 667 Other 268 852 Total long-term deferred tax assets $ 14,622 $ 32,249 Deferred tax liabilities: Depreciation and amortization (9,095 ) (16,226 ) Operating lease right-of-use assets (10,036 ) (25,291 ) Total long-term deferred tax liabilities $ (19,131 ) $ (41,517 ) Net deferred tax liabilities $ (4,509 ) $ (9,268 ) Pursuant to ASC 740, we must consider all positive and negative evidence regarding the realization of deferred tax assets. ASC 740 provides four possible sources of taxable income to realize deferred tax assets: 1) taxable income in prior carryback years, 2) reversals of existing deferred tax liabilities, 3) tax planning strategies and 4) projected future taxable income. As of September 30, 2021, we have no available taxable income in prior carryback years, limited reversals of existing deferred tax liabilities or prudent and feasible tax planning strategies. Therefore, the recoverability of our deferred tax assets is dependent upon generating future taxable income. As of September 30, 2017, we no longer had federal NOL carryforwards for federal income tax purposes. As of September 30, 2021, the Company has state NOL carryforwards of approximately $11.4 million for state income tax purposes, which resulted in a deferred tax asset of $0.7 million, and expire at various dates from 2029 through 2032. Significant judgment is required in evaluating our uncertain tax positions. Although we believe our tax return positions are sustainable, we recognize tax benefits from uncertain tax positions in the consolidated financial statements only when it is more likely than not that the positions will not be sustained upon examination, including resolution of any related appeals or litigation processes, based on the technical merits and a consideration of the relevant taxing authority’s administrative practices and precedents. To the extent that the final tax outcome of these matters is different than the amounts recorded, such differences will impact the provision for income taxes in the period in which such determination is made. The provision for income taxes includes the impact of reserve provisions and changes to reserves that are considered appropriate, as well as the related net interest and penalties. We are subject to tax by federal, state, and foreign taxing authorities. Until the respective statutes of limitations expire, we are subject to income tax audits in the jurisdictions in which we operate. We are no longer subject to U.S. federal tax assessments for fiscal years prior to 2018, we are not subject to assessments prior to the 2015 fiscal year for the majority of the State jurisdictions and we are not subject to assessments prior to the 2016 calendar year for the majority of the foreign jurisdictions.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Sep. 30, 2021
Equity [Abstract]
Shareholders' Equity	13. SHAREHOLDERS’ EQUITY: In March 2020, our Board of Directors approved a new share repurchase plan allowing the Company to repurchase up to 10 million shares of our common stock through March 2022. Under the plan, we may buy back common stock from time to time in the open market or in privately negotiated blocks, dependent upon various factors, including price and availability of the shares, and general market conditions. Through September 30, 2021 we had purchased an aggregate of 6,767,021 shares of common stock under the current and historical share repurchase plans for an aggregate purchase price of approximately $127.4 million. As of September 30, 2021, approximately 9.4 million shares remained available for future purchases under the share repurchase program.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	14. STOCK-BASED COMPENSATION: We account for our stock-based compensation plans following the provisions of FASB ASC 718, “Compensation — Stock Compensation” (“ASC 718”). In accordance with ASC 718, we use the Black-Scholes valuation model for valuing all options granted (Note 16) and shares purchased under our Amended 2008 Employee Stock Purchase Plan (“Stock Purchase Plan”). We measure compensation for restricted stock awards and restricted stock units (Note 17) at fair value on the grant date based on the number of shares expected to vest and the quoted market price of our common stock. We recognize compensation cost for all awards in operations on a straight-line basis over the requisite service period for each separately vesting portion of the award. Stock-based compensation expense recorded in selling, general, and administrative expenses was approximately $6.5 million, $7.5 million, and $9.7 million, for the fiscal years ended September 30, 2019, 2020, and 2021, respectively. Cash received from option exercises under all share-based compensation arrangements for the fiscal years ended September 30, 2019, 2020 and 2021 was approximately $2.4 million, $4.6 million, and $2.6 million, respectively. We currently expect to satisfy share-based awards with registered shares available to be issued from the Stock Purchase Plan.

The Incentive Stock Plans

The Incentive Stock Plans	12 Months Ended
	Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
The Incentive Stock Plans	15. THE INCENTIVE STOCK PLANS: In February 2020, our shareholders approved a proposal to amend the 2011 Stock-Based Compensation Plan (“2011 Plan”) to increase the 3,200,456 share threshold by 1,000,000 shares to 4,200,456 shares. In January 2011, our shareholders approved a proposal to authorize our 2011 Plan, which replaced our 2007 Incentive Compensation Plan (“2007 Plan”). Our 2011 Plan provides for the grant of stock options, stock appreciation rights, restricted stock, stock units, bonus stock, dividend equivalents, other stock related awards, and performance awards (collectively “awards”), that may be settled in cash, stock, or other property. Our 2011 Plan is designed to attract, motivate, retain, and reward our executives, employees, officers, directors, and independent contractors by providing such persons with annual and long-term performance incentives to expend their maximum efforts in the creation of shareholder value. Subsequent to the February 2020 amendment described above, the total number of shares of our common stock that may be subject to awards under the 2011 Plan is equal to 4,000,000 shares, plus: (i) any shares available for issuance and not subject to an award under the 2007 Plan, which was 200,456 shares at the time of approval of the 2011 Plan; (ii) the number of shares with respect to which awards granted under the 2011 Plan and the 2007 Plan terminate without the issuance of the shares or where the shares are forfeited or repurchased; (iii) with respect to awards granted under the 2011 Plan and the 2007 Plan, the number of shares that are not issued as a result of the award being settled for cash or otherwise not issued in connection with the exercise or payment of the award; and (iv) the number of shares that are surrendered or withheld in payment of the exercise price of any award or any tax withholding requirements in connection with any award granted under the 2011 Plan or the 2007 Plan. The 2011 Plan terminates in February 2030 , and awards may be granted at any time during the life of the 2011 Plan. The dates on which awards vest are determined by the Board of Directors or the Plan Administrator. The Board of Directors has appointed the Compensation Committee as the Plan Administrator. The exercise prices of options are determined by the Board of Directors or the Plan Administrator and are at least equal to the fair market value of shares of common stock on the date of grant. The term of options under the 2011 Plan may not exceed ten years . The options granted have varying vesting periods. To date, we have not settled or been under any obligation to settle any awards in cash. The following table summarizes activity from our incentive stock plans from September 30, 2020 through September 30, 2021: Shares Available for Grant Options Outstanding Aggregate Intrinsic Value (Amounts in thousands) Weighted Average Exercise Price Weighted Average Remaining Contractual Life Balance as of September 30, 2020 1,275,415 196,329 $ 2,636 $ 12.12 2.5 Options granted (5,000 ) 5,000 48.52 Options cancelled/forfeited/expired 10,000 (10,000 ) 7.54 Options exercised — (76,079 ) 13.68 Restricted stock awards granted (344,616 ) — — Restricted stock awards forfeited 6,325 — — Additional shares of stock issued (24,063 ) — — Balance as of September 30, 2021 918,061 115,250 $ 4,085 $ 13.08 1.9 Exercisable as of September 30, 2021 110,916 $ 4,044 $ 12.06 2.0 No options were granted during the fiscal years ended September 30, 2019, and 2020. The weighted-average grant date fair value of options granted during the fiscal year ended September 30, 2021 was $25.29. The total intrinsic value of options exercised during the fiscal years ended September 30, 2019, 2020 and 2021 was approximately $1.4 million, $3.8 million, and $1.8 million, respectively. As of September 30, 2021, there was approximately $0.1 million of unrecognized compensation costs related to non-vested options that are expected to be recognized over a weighted average period of 2.0 years. We used the Black-Scholes model to estimate the fair value of options granted. The expected term of options granted is estimated based on historical experience. Volatility is based on the historical volatility of our common stock. The risk-free rate for periods within the contractual term of the options is based on the U.S. Treasury yield curve in effect at the time of grant.

Employee Stock Purchase Plan

Employee Stock Purchase Plan	12 Months Ended
	Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Employee Stock Purchase Plan	16. EMPLOYEE STOCK PURCHASE PLAN: In February 2019, our shareholders approved a proposal to amend our Stock Purchase Plan to increase the number of shares available under that plan by 500,000 shares. The Stock Purchase Plan as amended provides for up to 1,500,000 shares of common stock to be available for purchase by our regular employees who have completed at least one year of continuous service. In addition, there were 52,837 shares of common stock available under our 1998 Employee Stock Purchase Plan, which have been made available for issuance under our Stock Purchase Plan. The Stock Purchase Plan provides for implementation of annual offerings beginning on the first day of October in each of the years 2008 through 2027, with each offering terminating on September 30 of the following year. Each annual offering may be divided into two six-month offerings. For each offering, the purchase price per share will be the lower of: (i) 85% of the closing price of the common stock on the first day of the offering or (ii) 85% of the closing price of the common stock on the last day of the offering. The purchase price is paid through periodic payroll deductions not to exceed 10% of the participant’s earnings during each offering period. However, no participant may purchase more than $25,000 worth of common stock annually. We used the Black-Scholes model to estimate the fair value of options granted to purchase shares issued pursuant to the Stock Purchase Plan. Volatility is based on the historical volatility of our common stock. The risk-free rate for periods within the contractual term of the options is based on the U.S. Treasury yield curve in effect at the time of grant. The following are the weighted-average assumptions used for the fiscal years ended September 30, 2019 2020 2021 Dividend yield 0.0% 0.0% 0.0% Risk-free interest rate 2.4% 0.8% 0.1% Volatility 48.3% 69.7% 69.6% Expected life Six months Six months Six months As of September 30, 2021, we had issued 1,139,547 shares of common stock under our Stock Purchase Plan.

Restricted Stock Awards

Restricted Stock Awards	12 Months Ended
	Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Restricted Stock Awards	17. RESTRICTED STOCK AWARDS: We have granted non-vested (restricted) stock awards (“restricted stock”) and restricted stock units (“RSUs”) to employees, directors, and officers pursuant to the 2011 Plan and the 2007 Plan. The restricted stock awards and RSUs have varying vesting periods, but generally become fully vested between two and four years after the grant date, depending on the specific award, performance targets met for performance-based awards granted to officers, and vesting period for time-based awards. Officer performance-based awards are granted at the target amount of shares that may be earned and the actual amount of the award earned generally could range from 0% to 175% of the target number of shares based on the actual specified performance target met. We accounted for the restricted stock awards granted using the measurement and recognition provisions of ASC 718. Accordingly, the fair value of the restricted stock awards, including performance-based awards, is measured on the grant date and recognized in earnings over the requisite service period for each separately vesting portion of the award. The following table summarizes restricted stock award activity from September 30, 2020 through September 30, 2021: Shares/ Units Weighted Average Grant Date Fair Value Non-vested balance as of September 30, 2020 902,631 $ 18.08 Changes during the period: Awards granted 344,616 $ 30.54 Awards vested (329,493 ) $ 19.32 Awards forfeited (6,325 ) $ 19.82 Non-vested balance as of September 30, 2021 911,429 $ 22.33 As of September 30, 2021, we had approximately $11.1 million of total unrecognized compensation cost, assuming applicable performance conditions are met, related to non-vested restricted stock awards. We expect to recognize that cost over a weighted-average period of 2.1 years.

Net Income Per Share

Net Income Per Share	12 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Net Income Per Share	18. NET INCOME PER SHARE: The following table presents shares used in the calculation of basic and diluted net income per share for the fiscal years ended September 30, 2019 2020 2021 Weighted average common shares outstanding used in calculating basic net income per share 22,294,114 21,547,665 22,010,130 Effect of dilutive options and non-vested restricted stock awards 587,033 577,673 849,368 Weighted average common and common equivalent shares used in calculating diluted net income per share 22,881,147 22,125,338 22,859,498 For the fiscal years ended September 30, 2019, 2020, and 2021 there were 10,988, 9,650, and 1,619 weighted average shares of options outstanding, respectively, that were not included in the computation of diluted net income per share because the options’ exercise prices were greater than the average market price of our common stock, and therefore, their effect would be anti-dilutive.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Sep. 30, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	19. COMMITMENTS AND CONTINGENCIES: We are party to various legal actions arising in the ordinary course of business. While it is not feasible to determine the actual outcome of these actions as of September 30, 2021, we believe that these matters should not have a material adverse effect on our consolidated financial condition, results of operations or cash flows. During the fiscal years ended September 30, 2019, and 2020, we incurred costs associated with store closings and lease terminations of approximately $3.1 million and $1.7 million, respectively. During the fiscal year ended September 30, 2021, we incurred no costs associated with store closings and lease terminations. The store closing costs have been included in selling, general, and administrative expenses in the accompanying Consolidated Statements of Operations. In connection with certain of our workers’ compensation insurance policies, we maintain standby letters of credit for our insurance carriers in the amount of $1.6 million relating primarily to retained risk on our workers compensation claims. We are subject to federal and state environmental regulations, including rules relating to air and water pollution and the storage and disposal of gasoline, oil, other chemicals and waste. We believe that we are in compliance with such regulations.

Employee 401(k) Profit Sharing

Employee 401(k) Profit Sharing Plans	12 Months Ended
	Sep. 30, 2021
Compensation And Retirement Disclosure [Abstract]
Employee 401(k) Profit Sharing Plans	20. EMPLOYEE 401(k) PROFIT SHARING PLANS: Employees are eligible to participate in our 401(k) Profit Sharing Plan (the “Plan”) following their 90-day introductory period starting either April 1 or October 1, provided that they are 21 years of age. Under the Plan, we matched 50% of participants’ contributions, up to a maximum of 5% of each participant’s compensation. We contributed, under the Plan, or pursuant to previous similar plans, approximately $2.3 million, $2.7 million, and $5.0 million for the fiscal years ended September 30, 2019, 2020 and 2021, respectively.

Segment Information

Segment Information	12 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Segment Information	21. SEGMENT INFORMATION: Change in Reportable Segments Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two new reportable segments: Retail Operations and Product Manufacturing. Reportable Segments The Company’s segments are defined by management’s reporting structure and operating activities. Our chief operating decision maker (“CODM”) is our Chief Executive Officer. Our CODM reviews operational income statement information by segment for purposes of making operating decisions, assessing financial performance, and allocating resources. The CODM is not provided asset information by segment. The Company’s reportable segments are the following: Retail Operations. As of September 30, 2021, the Retail Operations segment includes the sale of new and used recreational boats, including pleasure and fishing boats, with a focus on premium brands in each segment. We also sell related marine products, including engines, trailers, parts, and accessories. In addition, we provide repair, maintenance, and slip and storage services; we arrange related boat financing, insurance, and extended service contracts; we offer boat and yacht brokerage sales; yacht charter services. In the British Virgin Islands we offer the charter of catamarans, through MarineMax Vacations . Fraser Yachts Group and Northrop & Johnson, leading superyacht brokerage and luxury yacht services companies with operations in multiple countries, are also included in this segment. The Retail Operations segment includes the majority of all corporate costs. Product Manufacturing. As of September 30, 2021, the Product Manufacturing segment includes activity of Cruisers Yachts, a wholly-owned MarineMax subsidiary, manufacturing sport yacht and yachts with sales through our select retail dealership locations and through independent dealers. Cruisers Yachts is recognized as one of the world’s premier manufacturers of premium sport yacht and yachts, producing models from 33’ to 60’ feet. Intersegment revenue represents yachts that were manufactured in our Product Manufacturing segment and were sold to our Retail Operations segment. The Product Manufacturing segment supplies our Retail Operations segment along with various independent dealers. The following table sets forth depreciation and amortization for each of the Company’s reportable segments for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Depreciation: Retail Operations $ 11,583 $ 12,756 $ 13,821 Product Manufacturing — — 32 Depreciation $ 11,583 $ 12,756 $ 13,853 Amortization: Retail Operations $ 14 $ 16 $ 1,429 Product Manufacturing — — 324 Amortization $ 14 $ 16 $ 1,753 The following table sets forth revenue and income from operations for each of the Company’s reportable segments for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Revenue: Retail Operations $ 1,237,153 $ 1,509,713 $ 2,043,613 Product Manufacturing — — 44,000 Elimination of intersegment revenue — — (24,356 ) Revenue $ 1,237,153 $ 1,509,713 $ 2,063,257 Income from operations: Retail Operations $ 60,532 $ 106,715 $ 207,034 Product Manufacturing — — 6,940 Elimination of intersegment income from operations — — (4,515 ) Income from operations $ 60,532 $ 106,715 $ 209,459

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	12 Months Ended
	Sep. 30, 2021
Accounting Policies [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents We consider all highly liquid investments with an original maturity of three months or less to be cash equivalents.
Vendor Consideration Received	Vendor Consideration Received We classify interest assistance received from manufacturers as a reduction of inventory cost and related cost of sales. Amounts received by us under our co-op assistance programs from our manufacturers are netted against related advertising expenses. Our consideration received from our vendors contains uncertainties because the calculation requires management to make assumptions and to apply judgment regarding a number of factors, including our ability to collect amounts due from vendors and the ability to meet certain criteria stipulated by our vendors. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate our vendor considerations which would result in a material effect on our operating results.
Inventories	Inventories Inventories are stated at the lower of cost or net realizable value. The cost of inventories purchased from our vendors consist of the amount paid to acquire the inventory, net of vendor consideration and purchase discounts, the cost of equipment added, reconditioning costs, and transportation costs relating to acquiring inventory for sale. Trade-in used boats are initially recorded at fair value and adjusted for reconditioning and other costs. The cost of inventories that are manufactured by the Company consist of material, labor, and manufacturing overhead. Unallocated overhead and abnormal costs are expensed as incurred. New and used boats, motors, and trailers inventories are accounted for on a specific identification basis. Raw materials and parts, accessories, and other inventories are accounted for on an average cost basis. We utilize our historical experience, the aging of the inventories, and our consideration of current market trends as the basis for determining a lower of cost or net realizable value. We do not believe there is a reasonable likelihood that there will be a change in the future estimates or assumptions we use to calculate our valuation allowance which would result in a material effect on our operating results. As of September 30, 2020 and 2021, our valuation allowance for new and used boat, motor and trailer inventories was $2.4 million and $0.4 million, respectively. If events occur and market conditions change, causing the fair value to fall below carrying value, the valuation allowance could increase.
Property and Equipment	Property and Equipment We record property and equipment at cost, net of accumulated depreciation, and depreciate property and equipment over their estimated useful lives using the straight-line method. We capitalize and amortize leasehold improvements over the lesser of the life of the lease or the estimated useful life of the asset. Useful lives for purposes of computing depreciation are as follows: Years Buildings and improvements 5-40 Machinery and equipment 3-10 Furniture and fixtures 5-10 Vehicles 3-5 We remove the cost of property and equipment sold or retired and the related accumulated depreciation from the accounts at the time of disposition and include any resulting gain or loss in the accompanying Consolidated Statements of Operations. We charge maintenance, repairs, and minor replacements to operations as incurred, and we capitalize and amortize major replacements and improvements over their useful lives.
Goodwill	Goodwill We account for acquisitions in accordance with Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 805, “Business Combinations” (“ASC 805”), and goodwill in accordance with ASC 350, “Intangibles — Goodwill and Other” (“ASC 350”). For business combinations, the excess of the purchase price over the estimated fair value of net assets acquired in a business combination is recorded as goodwill. In accordance with ASC 350, we test goodwill for impairment at least annually and whenever events or changes in circumstances indicate that the carrying value may not be recoverable. Our annual impairment test is performed during the third fiscal quarter. If the carrying amount of a reporting unit’s goodwill exceeds its fair value we recognize an impairment loss in accordance with ASC 350. Based upon our most recent analysis, we determined through our qualitative assessment that it is not “more likely than not” that the fair values of our reporting units are less than their carrying values. As a result, we were not required to perform a quantitative goodwill impairment test.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets FASB ASC 360-10-40, “Property, Plant, and Equipment — Impairment or Disposal of Long-Lived Assets” (“ASC 360-10-40”), requires that long-lived assets, such as property and equipment and purchased intangibles subject to amortization, be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of the asset (or asset group) is measured by comparison of its carrying amount to undiscounted future net cash flows the asset (or asset group) is expected to generate over the remaining life of the asset (or asset group). If such assets are considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the asset (or asset group) exceeds its fair market value. Estimates of expected future cash flows represent our best estimate based on currently available information and reasonable and supportable assumptions. Our impairment loss calculations contain uncertainties because they require us to make assumptions and to apply judgment in order to estimate expected future cash flows. Any impairment recognized in accordance with ASC 360-10-40 is permanent and may not be restored. Based upon our most recent analysis, we believe no impairment of long-lived assets existed as of September 30, 2021.
Insurance	Insurance We retain varying levels of risk relating to the insurance policies we maintain, most significantly, workers’ compensation insurance and employee medical benefits. We are responsible for the claims and losses incurred under these programs, limited by per occurrence deductibles and paid claims or losses up to pre-determined maximum exposure limits. Our third-party insurance carriers pay any losses above the pre-determined exposure limits. We estimate our liability for incurred but not reported losses using our historical loss experience, our judgment, and industry information.
Revenue Recognition	Revenue Recognition The majority of our revenue is from contracts with customers for the sale of boats, motors, and trailers. We recognize revenue from boat, motor, and trailer sales upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance of the boat, motor, and trailer by the customer and the satisfaction of our performance obligations. The transaction price is determined with the customer at the time of sale. Customers may trade in a used boat to apply toward the purchase of a new or used boat. The trade-in is a type of noncash consideration measured at fair value, based on external and internal observable and unobservable market data and applied as payment to the contract price for the purchased boat. At the time of acceptance, the customer is able to direct the use of, and obtain substantially all of the benefits of the boat, motor, or trailer. We recognize commissions earned from a brokerage sale when the related brokerage transaction closes upon transfer of control of the boat, motor, or trailer to the customer, which is generally upon acceptance by the customer. We do not directly finance our customers’ boat, motor, or trailer purchases. In many cases, we assist with third-party financing for boat, motor, and trailer sales. We recognize commissions earned by us for placing notes with financial institutions in connection with customer boat financing when we recognize the related boat sales. Pursuant to negotiated agreements with financial institutions, we are charged back for a portion of these fees should the customer terminate or default on the related finance contract before it is outstanding for a stipulated minimum period of time. We base the chargeback allowance, which was not material to the consolidated financial statements taken as a whole as of September 30, 2020 and 2021, on our experience with repayments or defaults on the related finance contracts. We recognize variable consideration from commissions earned on extended warranty service contracts sold on behalf of third-party insurance companies at generally the later of customer acceptance of the service contract terms as evidenced by contract execution or recognition of the related boat sale. We also recognize variable consideration from marketing fees earned on insurance products sold by third-party insurance companies at the later of customer acceptance of the insurance product as evidenced by contract execution or when the related boat sale is recognized. We recognize revenue from parts and service operations (boat maintenance and repairs) over time as services are performed. 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 short period of time from contract inception. We satisfy our performance obligations, transfer control, and recognize revenue over time for parts and service operations because we are creating a contract asset with no alternative use and we have an enforceable right to payment for performance completed to date. Contract assets primarily relate to our right to consideration for work in process not yet billed at the reporting date associated with maintenance and repair services. We use an input method to recognize revenue and measure progress based on labor hours expended to satisfy the performance obligation at average labor rates. We have determined labor hours expended to be the relevant measure of work performed to complete the maintenance and repair service for the customer. As a practical expedient, because repair and maintenance service contracts have an original duration of one year or less, we do not consider the time value of money, and we do not disclose estimated revenue expected to be recognized in the future for performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period or when we expect to recognize such revenue. Contract assets, recorded in prepaid expenses and other current assets, totaled approximately $2.6 million and $5.7 million as of September 30, 2020 and September 30, 2021, respectively. We recognize revenue from the sale of our manufactured yachts when control of the yacht is transferred to the dealer, which is generally upon acceptance by the dealer. At the time of acceptance, the dealer is able to direct the use of, and obtain substantially all of the benefits of the yacht. We have elected to record shipping and handling activities that occur after the dealer has obtained control of the yacht as a fulfillment activity. Contract liabilities primarily consist of customer deposits. We recognize contract liabilities (customer deposits) as revenue at the time of acceptance and the transfer of control to the customers. Total contract liabilities of approximately $24.3 million recorded as of September 30, 2019 were recognized in revenue during the fiscal year ended September 30, 2020. Total contract liabilities of approximately $31.8 million recorded as of September 30, 2020 were recognized in revenue during the fiscal year ended September 30, 2021. We recognize deferred revenue from service operations and slip and storage services over time on a straight-line basis over the term of the contract as our performance obligations are met. We recognize income from the rentals of chartering power yachts over time on a straight-line basis over the term of the contract as our performance obligations are met. The following table sets forth percentages on the timing of revenue recognition by reportable segment for the fiscal years ended September 30, Retail Operations Product Manufacturing 2019 2020 2021 2019 2020 2021 Goods and services transferred at a point in time 90.8 % 92.7 % 91.6 % — — 100.0 % Goods and services transferred over time 9.2 % 7.3 % 8.4 % — — — Revenue 100.0 % 100.0 % 100.0 % — — 100.0 % The following tables set forth our revenue disaggregated into categories that depict the nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors for the fiscal years ended September 30, 2021 Retail Operations Product Manufacturing Total New boat sales 70.3 % 100.0 % 70.5 % Used boat sales 11.0 % — 10.9 % Maintenance, repair, storage, and charter services 7.1 % — 7.1 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.2 % — 3.2 % Brokerage sales 5.7 % — 5.6 % Revenue 100.0 % 100.0 % 100.0 % 2020 Retail Operations Product Manufacturing Total New boat sales 70.2 % — 70.2 % Used boat sales 15.1 % — 15.1 % Maintenance, repair, storage, and charter services 6.4 % — 6.4 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.0 % — 3.0 % Brokerage sales 2.6 % — 2.6 % Revenue 100.0 % — 100.0 % 2019 Retail Operations Product Manufacturing Total New boat sales 70.1 % — 70.1 % Used boat sales 14.9 % — 14.9 % Maintenance, repair, storage, and charter services 6.9 % — 6.9 % Finance and insurance products 2.6 % — 2.6 % Parts and accessories 3.6 % — 3.6 % Brokerage sales 1.9 % — 1.9 % Revenue 100.0 % — 100.0 %
Stock-Based Compensation	Stock-Based Compensation We account for our stock-based compensation plans following the provisions of FASB ASC 718, “Compensation — Stock Compensation” (“ASC 718”). In accordance with ASC 718, we use the Black-Scholes valuation model for estimating the fair value of stock option grants and shares purchased under our Employee Stock Purchase Plan. We measure compensation for restricted stock awards and restricted stock units at fair value on the grant date based on the number of shares expected to vest and the quoted market price of our common stock on the grant date. We recognize compensation cost for all awards in operations, net of estimated forfeitures, on a straight-line basis over the requisite service period for each separately vesting portion of the award.
Foreign Currency Transactions	Foreign Currency Transactions For the Company’s foreign subsidiaries that use a currency other than the U.S. dollar as their functional currency, the assets and liabilities are translated at exchange rates in effect at the balance sheet date, and revenues and expenses are translated at the weighted average exchange rate for the period. The effects of these translation adjustments are reported in accumulated other comprehensive income. Gains and losses arising from transactions denominated in a currency other than the functional currency of the entity involved are included in operating income. No amounts were reclassified out of accumulated other comprehensive income in fiscal 2021.
Advertising and Promotional Costs	Advertising and Promotional Cost We expense advertising and promotional costs as incurred and include them in selling, general and administrative expenses in the accompanying Consolidated Statements of Operations. We net amounts received by us under our co-op assistance programs from our manufacturers against the related advertising expenses. Total advertising and promotional expenses approximated $18.8 million, $14.0 million and $14.8 million, net of related co-op assistance, which was not material to the consolidated financial statements, for the fiscal years ended September 30, 2019, 2020, and 2021, respectively.
Income Taxes	Income Taxes We account for income taxes in accordance with FASB ASC 740, “Income Taxes” (“ASC 740”). Under ASC 740, we recognize deferred tax assets and liabilities for the future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. We measure deferred tax assets and liabilities using enacted tax rates expected to apply to taxable income in the years in which we expect those temporary differences to be recovered or settled. We record valuation allowances to reduce our deferred tax assets to the amount expected to be realized by considering all available positive and negative evidence.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments, which potentially subject us to concentrations of credit risk, consist principally of cash and cash equivalents and accounts receivable. Concentrations of credit risk with respect to our cash and cash equivalents are limited primarily to amounts held with financial institutions. Concentrations of credit risk arising from our receivables are limited primarily to amounts due from manufacturers and financial institutions.
Use of Estimates and Assumptions	Use of Estimates and Assumptions The preparation of consolidated financial statements in conformity with accounting principles generally accepted in the United States requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting periods. Significant estimates made by us in the accompanying consolidated financial statements include valuation allowances, valuation of goodwill and intangible assets, valuation of long-lived assets, valuation of contingent consideration liabilities, and valuation of accruals. Actual results could differ materially from those estimates.
Segment Reporting	Segment Reporting Effective May 2, 2021, our reportable segments changed as a result of the Company’s acquisition of Cruisers Yachts, which changed management’s reporting structure and operating activities. We now report our operations through two new reportable segments: Retail Operations and Product Manufacturing. The change in reportable segments had no impact on the Company’s previously reported historical consolidated financial statements. Where applicable, all prior periods presented have been revised to conform to the change in reportable segments. See Note 21.
New Accounting Pronouncements	Accounting for Leases We adopted Accounting Standards Update (“ASU”) 2016-02, “Leases (Topic 842)” (“ASU 2016-02”) effective October 1, 2019 the first day of fiscal 2020. We elected the package of practical expedients available under the transition guidance within the new standard, which among other things, allowed us to carry forward the historical lease classification of our existing leases. Consequently, on adoption, we recognized additional operating lease liabilities of $44.0 million and right-of-use (“ROU”) assets of $42.1 million. The new standard also provides practical expedients for an entity’s ongoing accounting. We elected the short-term lease recognition exemption for all leases that qualify. As a result, for those leases that qualify, we will not recognize ROU assets or lease liabilities, and we did not recognize ROU assets or lease liabilities for existing short-term leases of those assets in transition. We also elected the practical expedient to not separate lease and non-lease components. We recognized a net after-tax cumulative effect adjustment to retained earnings of $ as of the date of adoption. Other New Pronouncements In August 2018, the FASB issued ASU 2018-15, “Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract” (“ASU 2018-15”), which aligns the accounting for implementation costs incurred in a cloud computing arrangement that is a service contract with the guidance on capitalizing costs associated with developing or obtaining internal-use software. The guidance amends ASC 350 to include in its scope implementation costs of a cloud computing arrangement that is a service contract and clarifies that a customer should apply ASC 350 to determine which implementation costs should be capitalized in such a cloud computing arrangement. This guidance is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2019. We adopted ASU 2018-05 effective October 1, 2020 the first day of fiscal 2021. The adoption of this standard had no impact on our consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, “ Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments ” (“ASU 2016-13”) . ASU 2016-13 requires entities to report “expected” credit losses on financial instruments and other commitments to extend credit rather than the current “incurred loss” model. These expected credit losses for financial assets held at the reporting date are to be based on historical experience, current conditions, and reasonable and supportable forecasts. This ASU will also require enhanced disclosures relating to significant estimates and judgments used in estimating credit losses, as well as the credit quality. This guidance is effective for fiscal years and interim periods within those fiscal years beginning after December 15, 2019. We adopted ASU 2016-13 effective October 1, 2020 the first day of fiscal 2021. The adoption of this standard had no impact on our consolidated financial statements.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	12 Months Ended
	Sep. 30, 2021
Estimated Life of Property and Equipment	Useful lives for purposes of computing depreciation are as follows: Years Buildings and improvements 5-40 Machinery and equipment 3-10 Furniture and fixtures 5-10 Vehicles 3-5
Summary of Percentage on Timing of Revenue Recognition by Reportable Segment	The following table sets forth percentages on the timing of revenue recognition by reportable segment for the fiscal years ended September 30, Retail Operations Product Manufacturing 2019 2020 2021 2019 2020 2021 Goods and services transferred at a point in time 90.8 % 92.7 % 91.6 % — — 100.0 % Goods and services transferred over time 9.2 % 7.3 % 8.4 % — — — Revenue 100.0 % 100.0 % 100.0 % — — 100.0 %
Product Concentration Risk [Member] | Sales [Member]
Summary of Revenue Disaggregated Into Categories Depict the Nature, Amount, Timing, and Uncertainty of Revenue and Cash Flows Affected by Economic Factor	The following tables set forth our revenue disaggregated into categories that depict the nature, amount, timing, and uncertainty of revenue and cash flows affected by economic factors for the fiscal years ended September 30, 2021 Retail Operations Product Manufacturing Total New boat sales 70.3 % 100.0 % 70.5 % Used boat sales 11.0 % — 10.9 % Maintenance, repair, storage, and charter services 7.1 % — 7.1 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.2 % — 3.2 % Brokerage sales 5.7 % — 5.6 % Revenue 100.0 % 100.0 % 100.0 % 2020 Retail Operations Product Manufacturing Total New boat sales 70.2 % — 70.2 % Used boat sales 15.1 % — 15.1 % Maintenance, repair, storage, and charter services 6.4 % — 6.4 % Finance and insurance products 2.7 % — 2.7 % Parts and accessories 3.0 % — 3.0 % Brokerage sales 2.6 % — 2.6 % Revenue 100.0 % — 100.0 % 2019 Retail Operations Product Manufacturing Total New boat sales 70.1 % — 70.1 % Used boat sales 14.9 % — 14.9 % Maintenance, repair, storage, and charter services 6.9 % — 6.9 % Finance and insurance products 2.6 % — 2.6 % Parts and accessories 3.6 % — 3.6 % Brokerage sales 1.9 % — 1.9 % Revenue 100.0 % — 100.0 %

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Sep. 30, 2021
Fair Value Disclosures [Abstract]
Summary of Financial Assets and Liabilities Measured at Fair Value	The following tables summarize the Company’s financial assets and liabilities measured at fair value in the accompanying Consolidated Balance Sheets as of September 30, 2021 Level 1 Level 2 Level 3 Total (Amounts in thousands) Assets: Interest rate swap contract $ — $ 150 $ — $ 150 Liabilities: Contingent consideration liabilities $ — $ — $ 12,364 $ 12,364 2020 Level 1 Level 2 Level 3 Total (Amounts in thousands) Liabilities: Contingent consideration liabilities $ — $ — $ 2,960 $ 2,960
Summary of Changes in Fair Value of Contingent Consideration Liabilities Which Reflect Level 3 Inputs	The following table sets forth the changes in fair value of our contingent consideration liabilities, which reflect Level 3 inputs, for the fiscal the years ended September 30, 2020 and 2021: Contingent Consideration Liabilities (Amounts in thousands) Balance as of September 30, 2019 $ 845 Additions from business acquisitions 2,270 Settlement of contingent consideration liabilities (148 ) Change in fair value and net present value of contingency (7 ) Balance as of September 30, 2020 $ 2,960 Additions from business acquisitions 10,640 Settlement of contingent consideration liabilities (3,000 ) Change in fair value and net present value of contingency 1,764 Balance as of September 30, 2021 $ 12,364
Summary of Carrying Value and Fair Value of Mortgage Facilities	. The following table summarizes the carrying value and fair value of our mortgage facilities as of September 30 2020 2021 Fair Value Carrying Value Fair Value Carrying Value (Amounts in thousands) Mortgage facility payable to Flagship Bank $ 7,396 $ 7,396 $ 6,872 $ 6,899 Mortgage facility payable to Seacoast National Bank — — 17,529 17,675 Mortgage facility payable to Hancock Whitney Bank — — 27,089 27,106

Accounts Receivable (Tables)

Accounts Receivable (Tables)	12 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Accounts Receivable, Net	Accounts receivable, net consisted of the following as of September 30, 2020 2021 (Amounts in thousands) Trade receivables, net $ 31,289 $ 38,953 Amounts due from manufacturers 7,575 7,344 Other receivables 1,331 1,354 Accounts receivable, net $ 40,195 $ 47,651

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Sep. 30, 2021
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories, net consisted of the following as of September 30, 2020 2021 (Amounts in thousands) New and used boats, motors, and trailers $ 289,291 $ 193,888 Parts, accessories, and other 8,711 13,779 Work-in-process — 11,358 Raw materials — 11,959 Inventories, net $ 298,002 $ 230,984

Property and Equipment (Tables)

Property and Equipment (Tables)	12 Months Ended
	Sep. 30, 2021
Property Plant And Equipment [Abstract]
Schedule of Property and Equipment, Net	Property and equipment, net consisted of the following as of September 30, 2020 2021 (Amounts in thousands) Land $ 55,549 $ 57,330 Buildings and improvements 115,394 137,271 Machinery and equipment 39,416 54,510 Furniture and fixtures 5,233 5,897 Vehicles 12,612 18,269 Gross property and equipment 228,204 273,277 Less: accumulated depreciation and amortization (86,270 ) (97,814 ) Property and equipment, net $ 141,934 $ 175,463

Leases (Tables)

Leases (Tables)	12 Months Ended
	Sep. 30, 2021
Leases [Abstract]
Summary of Maturities of Lease Liabilities by Fiscal Year	As of September 30, 2021, maturities of lease liabilities by fiscal year are summarized as follows: (Amounts in thousands) 2022 $ 16,080 2023 14,913 2024 12,714 2025 10,315 2026 9,947 Thereafter 88,190 Total lease payments 152,159 Less: interest (44,633 ) Present value of lease liabilities $ 107,526
Schedule of Supplemental Cash Flow Information Related to Leases	The following table sets forth s upplemental cash flow information related to leases for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ — $ 10,209 $ 16,917 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ — $ 3,811 $ 74,097

Goodwill Intangible Assets an_2

Goodwill Intangible Assets and Other Long Term Assets (Tables)	12 Months Ended
	Sep. 30, 2021
Summary of Changes in Carrying Amount of Goodwill by Reportable Segment	The following table sets forth the changes in carrying amount of goodwill by reportable segment for the fiscal years ended September 30, 2020 and 2021: Retail Operations Product Manufacturing Total (Amounts in thousands) Balance as of September 30, 2019 $ 64,006 $ — $ 64,006 Goodwill acquired 19,614 — 19,614 Foreign currency translation 620 — 620 Balance as of September 30, 2020 $ 84,240 $ — $ 84,240 Goodwill acquired 71,306 40,134 111,440 Foreign currency translation (117 ) — (117 ) Balance as of September 30, 2021 $ 155,429 $ 40,134 $ 195,563
Cruisers Yachts [Member]
Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date	The following table summarizes the consideration paid for Cruisers Yachts and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Fair value of total consideration transferred $ 61,448 Recognized amounts of identifiable assets acquired and liabilities assumed: Current assets, net of cash acquired of $5,993 $ 29,869 Property and equipment 12,126 Intangible assets 4,602 Current liabilities (25,283 ) Total identifiable net assets acquired: 21,314 Goodwill $ 40,134 Total $ 61,448
SkipperBuds [Member]
Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date	The following table summarizes the consideration paid for SkipperBud’s and the allocation of the purchase consideration to the estimated fair value of the assets acquired and liabilities assumed at the acquisition date. (Amounts in thousands) Consideration: Cash purchase price and net working capital adjustments, net of cash acquired of $30,615 $ 50,261 Contingent consideration liability 8,200 Fair value of total consideration transferred $ 58,461 Recognized amounts of identifiable assets acquired and liabilities assumed: Current assets, net of cash acquired of $30,615 $ 50,688 Property and equipment 4,859 Intangible assets 1,978 Current liabilities (55,427 ) Total identifiable net assets acquired: 2,098 Goodwill $ 56,363 Total $ 58,461

Accrued Expenses (Table)

Accrued Expenses (Table)	12 Months Ended
	Sep. 30, 2021
Accounts Payable And Accrued Liabilities Current [Abstract]
Summary of Accrued Expenses	Accrued expenses consisted of the following as of September 30, 2020 2021 (Amounts in thousands) Payroll accruals $ 23,142 $ 42,138 Customer and storage accruals 11,381 17,390 Sales and other taxes payable 5,829 8,462 Other accruals 11,264 18,604 Accrued expenses $ 51,616 $ 86,594

Short-Term Borrowings and Lon_2

Short-Term Borrowings and Long-Term Debt (Tables)	12 Months Ended
	Sep. 30, 2021
Debt Disclosure [Abstract]
Schedule of Long-term Debt	The below table summarizes the Company's long-term debt. September 30, 2021 (Amounts in thousands) Mortgage facility payable to Flagship Bank bearing interest at 2.25% (prime minus 100 basis points with a floor of 2.00%). Requires monthly principal and interest payments with a balloon payment of approximately $4.0 million due August 2027 $ 6,899 Mortgage facility payable to Seacoast National Bank bearing interest at 3.00% (greater of 3.00% or prime minus 62.5 basis points). Requires monthly interest payments for the first year and then monthly principal and interest payments with a balloon payment of approximately $6.0 million due September 2031 17,675 Mortgage facility payable to Hancock Whitney Bank bearing interest at 2.63% (prime minus 62.5 basis points with a floor of 2.25%). Requires monthly principal and interest payments with a balloon payment of approximately $15.5 million due November 2027 are hedged with an interest rate swap contract with a fixed rate of 3.20%. 27,106 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 3.00% (prime minus 25 basis points with a floor of 3.00%). Facility matures in October 2027 under the facility were approximately $26.1 million at September 30, 2021. — Total long-term debt 51,680 Less: current portion (3,587 ) Less: unamortized portion of debt issuance costs (595 ) Long-term debt, net current portion and unamortized debt issuance costs $ 47,498
Summary of Aggregate Maturities of Long Term Debt	As of September 30, 2021, the aggregate maturities of long-term debt by fiscal year are summarized as follows: (Amounts in thousands) 2022 $ 3,587 2023 3,587 2024 3,587 2025 3,587 2026 3,587 Thereafter 33,745 Total long-term debt $ 51,680

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Summary of Income Before Income Tax Provision	Income before income tax provision consisted of the following components for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Income before income tax provision: United States $ 46,986 $ 94,854 $ 202,643 Other 1,967 2,586 3,151 Total $ 48,953 $ 97,440 $ 205,794
Components of Income Taxes Provision	The components of our provision from income taxes consisted of the following for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Current provision: Federal $ 7,933 $ 17,654 $ 38,028 Foreign 516 654 1,516 State 135 1,365 6,527 Total current provision $ 8,584 $ 19,673 $ 46,071 Deferred provision: Federal $ 2,285 $ 2,262 $ 4,201 Foreign — — — State 2,099 871 543 Total deferred provision 4,384 3,133 4,744 Total income tax provision $ 12,968 $ 22,806 $ 50,815
Summary of Tax Rates	Below is a reconciliation of the statutory federal income tax rate to our effective tax rate for the fiscal years ended September 30, 2019 2020 2021 Federal tax provision 21.0 % 21.0 % 21.0 % State taxes, net of federal benefit 4.1 % 3.1 % 3.7 % Stock-based compensation — (0.5 )% (0.7 )% Valuation allowance (0.1 )% (0.2 )% — Foreign rate differential 0.2 % 0.1 % 0.1 % Other 1.3 % (0.1 )% 0.6 % Effective tax rate 26.5 % 23.4 % 24.7 %
Components of Deferred Tax Assets	Deferred income taxes reflect the impact of temporary differences between the amount of assets and liabilities recognized for financial reporting purposes and such amounts recognized for income tax purposes. The tax effects of these temporary differences representing the components of deferred tax assets as of September 30, 2020 2021 (Amounts in thousands) Deferred tax assets: Inventories $ 808 $ 771 Operating lease liabilities 9,926 25,924 Accrued expenses 640 1,225 Stock-based compensation 2,170 2,810 Tax loss carryforwards 810 667 Other 268 852 Total long-term deferred tax assets $ 14,622 $ 32,249 Deferred tax liabilities: Depreciation and amortization (9,095 ) (16,226 ) Operating lease right-of-use assets (10,036 ) (25,291 ) Total long-term deferred tax liabilities $ (19,131 ) $ (41,517 ) Net deferred tax liabilities $ (4,509 ) $ (9,268 )

The Incentive Stock Plans (Tabl

The Incentive Stock Plans (Tables)	12 Months Ended
	Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Incentive Stock Plans Activity	The following table summarizes activity from our incentive stock plans from September 30, 2020 through September 30, 2021: Shares Available for Grant Options Outstanding Aggregate Intrinsic Value (Amounts in thousands) Weighted Average Exercise Price Weighted Average Remaining Contractual Life Balance as of September 30, 2020 1,275,415 196,329 $ 2,636 $ 12.12 2.5 Options granted (5,000 ) 5,000 48.52 Options cancelled/forfeited/expired 10,000 (10,000 ) 7.54 Options exercised — (76,079 ) 13.68 Restricted stock awards granted (344,616 ) — — Restricted stock awards forfeited 6,325 — — Additional shares of stock issued (24,063 ) — — Balance as of September 30, 2021 918,061 115,250 $ 4,085 $ 13.08 1.9 Exercisable as of September 30, 2021 110,916 $ 4,044 $ 12.06 2.0

Employee Stock Purchase Plan (T

Employee Stock Purchase Plan (Tables)	12 Months Ended
	Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Weighted Average Assumptions of Employee Stock Purchase Plan	The following are the weighted-average assumptions used for the fiscal years ended September 30, 2019 2020 2021 Dividend yield 0.0% 0.0% 0.0% Risk-free interest rate 2.4% 0.8% 0.1% Volatility 48.3% 69.7% 69.6% Expected life Six months Six months Six months

Restricted Stock Awards (Tables

Restricted Stock Awards (Tables)	12 Months Ended
	Sep. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Restricted Stock Award Activity	The following table summarizes restricted stock award activity from September 30, 2020 through September 30, 2021: Shares/ Units Weighted Average Grant Date Fair Value Non-vested balance as of September 30, 2020 902,631 $ 18.08 Changes during the period: Awards granted 344,616 $ 30.54 Awards vested (329,493 ) $ 19.32 Awards forfeited (6,325 ) $ 19.82 Non-vested balance as of September 30, 2021 911,429 $ 22.33

Net Income Per Share (Tables)

Net Income Per Share (Tables)	12 Months Ended
	Sep. 30, 2021
Earnings Per Share [Abstract]
Basic and Diluted Net Income Per Share	The following table presents shares used in the calculation of basic and diluted net income per share for the fiscal years ended September 30, 2019 2020 2021 Weighted average common shares outstanding used in calculating basic net income per share 22,294,114 21,547,665 22,010,130 Effect of dilutive options and non-vested restricted stock awards 587,033 577,673 849,368 Weighted average common and common equivalent shares used in calculating diluted net income per share 22,881,147 22,125,338 22,859,498

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Sep. 30, 2021
Segment Reporting [Abstract]
Summary of Depreciation and Amortization of Reportable Segments	The following table sets forth depreciation and amortization for each of the Company’s reportable segments for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Depreciation: Retail Operations $ 11,583 $ 12,756 $ 13,821 Product Manufacturing — — 32 Depreciation $ 11,583 $ 12,756 $ 13,853 Amortization: Retail Operations $ 14 $ 16 $ 1,429 Product Manufacturing — — 324 Amortization $ 14 $ 16 $ 1,753
Summary of Revenue and Income from Operations of Reportable Segments	The following table sets forth revenue and income from operations for each of the Company’s reportable segments for the fiscal years ended September 30, 2019 2020 2021 (Amounts in thousands) Revenue: Retail Operations $ 1,237,153 $ 1,509,713 $ 2,043,613 Product Manufacturing — — 44,000 Elimination of intersegment revenue — — (24,356 ) Revenue $ 1,237,153 $ 1,509,713 $ 2,063,257 Income from operations: Retail Operations $ 60,532 $ 106,715 $ 207,034 Product Manufacturing — — 6,940 Elimination of intersegment income from operations — — (4,515 ) Income from operations $ 60,532 $ 106,715 $ 209,459

Company Background and Basis _2

Company Background and Basis of Presentation - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2021StoreState	Sep. 30, 2020	Sep. 30, 2019
Concentration Risk [Line Items]
Number of retail locations | Store	77
Number of states wherein retail locations are established | State	21
Product Concentration Risk [Member] | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	100.00%	100.00%	100.00%
Product Concentration Risk [Member] | Brunswick [Member] | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	27.00%
Product Concentration Risk [Member] | Brunswick Sea Ray Boat [Member] | Brunswick [Member] | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	11.00%
Product Concentration Risk [Member] | Brunswick Boston Whaler Boats [Member] | Brunswick [Member] | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	13.00%
Product Concentration Risk [Member] | Azimut Benetti Groups and Yachts | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	10.00%
Geographic Concentration Risk [Member] | Sales [Member] | Florida [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	50.00%	54.00%	54.00%

Significant Accounting Polici_4

Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2021USD ($)Segment	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)
Accounting Policies [Abstract]
Inventories valuation allowance	$ 400,000	$ 2,400,000
Goodwill and other intangible assets increased from acquisitions	116,800,000	20,200,000
Goodwill and other intangible assets	201,122,000	84,293,000
Business acquisition, goodwill for tax purposes	110,800,000	16,800,000
Impairment charges	0
Contract assets recorded in prepaid expenses and other current assets	$ 5,700,000	2,600,000
Revenue remaining obligation description	As a practical expedient, because repair and maintenance service contracts have an original duration of one year or less, we do not consider the time value of money, and we do not disclose estimated revenue expected to be recognized in the future for performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period or when we expect to recognize such revenue.
Contract liabilities	$ 100,660,000	31,821,000	$ 24,300,000
Contract liabilities recognized in revenue	31,800,000	24,300,000
Accumulated other comprehensive income	648,000	829,000
Reclassified out of accumulated other comprehensive income	0
Total advertising and promotional expenses	$ 14,800,000	$ 14,000,000	$ 18,800,000
Number of reporting segment | Segment	2

Significant Accounting Polici_5

Significant Accounting Policies - Estimated Life of Property and Equipment (Detail)	12 Months Ended
	Sep. 30, 2021
Buildings and Improvements [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	5 years
Buildings and Improvements [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	40 years
Machinery and Equipment [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	10 years
Furniture and Fixtures [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	10 years
Vehicles [Member] | Minimum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	3 years
Vehicles [Member] | Maximum [Member]
Property Plant And Equipment [Line Items]
Property and equipment useful life	5 years

Significant Accounting Polici_6

Significant Accounting Policies - Summary of Percentage on Timing of Revenue Recognition by Reportable Segment (Details)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	100.00%	100.00%	100.00%
Product Manufacturing [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	100.00%
Goods and Services Transferred at a Point in Time [Member] | Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	91.60%	92.70%	90.80%
Goods and Services Transferred at a Point in Time [Member] | Product Manufacturing [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	100.00%
Goods and Services Transferred Over Time [Member] | Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total Revenue	8.40%	7.30%	9.20%

Significant Accounting Polici_7

Significant Accounting Policies - Summary of Revenue Disaggregated Into Categories Depict the Nature, Amount, Timing, and Uncertainty of Revenue and Cash Flows Affected by Economic Factor (Detail) - Product Concentration Risk [Member] - Sales [Member]	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	100.00%	100.00%	100.00%
Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	100.00%	100.00%	100.00%
Product Manufacturing [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	100.00%
New Boat Sales [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	70.50%	70.20%	70.10%
New Boat Sales [Member] | Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	70.30%	70.20%	70.10%
New Boat Sales [Member] | Product Manufacturing [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	100.00%
Used Boat Sales [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	10.90%	15.10%	14.90%
Used Boat Sales [Member] | Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	11.00%	15.10%	14.90%
Maintenance, Repair, Storage and Charter Services [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	7.10%	6.40%	6.90%
Maintenance, Repair, Storage and Charter Services [Member] | Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	7.10%	6.40%	6.90%
Finance and Insurance Products [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	2.70%	2.70%	2.60%
Finance and Insurance Products [Member] | Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	2.70%	2.70%	2.60%
Parts and Accessories [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	3.20%	3.00%	3.60%
Parts and Accessories [Member] | Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	3.20%	3.00%	3.60%
Brokerage Sales [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	5.60%	2.60%	1.90%
Brokerage Sales [Member] | Retail Operations [Member]
Product Information [Line Items]
Sales Revenue Goods And Services Net Percentage	5.70%	2.60%	1.90%

New Accounting Pronouncements -

New Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020	Oct. 01, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease, liabilities	$ 107,526
Operating lease right-of-use assets, net	104,901	$ 37,991
Cumulative effect adjustment to retained earnings, net after tax	$ 432,678	$ 277,699
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease, liabilities			$ 44,000
Operating lease right-of-use assets, net			42,100
Accounting Standards Update 2016-02 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cumulative effect adjustment to retained earnings, net after tax			$ 600

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Assets:
Interest rate swap contract	$ 150
Liabilities:
Contingent consideration liabilities	12,364	$ 2,960
Level 2 [Member]
Assets:
Interest rate swap contract	150
Level 3 [Member]
Liabilities:
Contingent consideration liabilities	$ 12,364	$ 2,960

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair value, assets, level 1 to level 2 transfers	$ 0	$ 0
Fair value, assets, level 2 to level 1 transfers	0	0
Fair value, assets, level 2 to level 3 transfers	0	0
Fair value, assets, level 3 to level 2 transfers	0	0
Fair value, assets, level 1 to level 3 transfers	0	0
Fair value, assets, level 3 to level 1 transfers	0	0
Fair value, liabilities, level 1 to level 2 transfers	0	0
Fair value, liabilities, level 2 to level 1 transfers	0	0
Fair value, liabilities, level 2 to level 3 transfers	0	0
Fair value, liabilities, level 3 to level 2 transfers	0	0
Fair value, liabilities, level 1 to level 3 transfers	0	0
Fair value, liabilities, level 3 to level 1 transfers	$ 0	$ 0

Fair Value Measurements - Sum_2

Fair Value Measurements - Summary of Changes in Fair Value of Contingent Consideration Liabilities Which Reflect Level 3 Inputs (Details) - Contingent Consideration Liabilities [Member] - Level 3 [Member] - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 2,960	$ 845
Additions from business acquisitions	10,640	2,270
Settlement of contingent consideration liabilities	(3,000)	(148)
Change in fair value and net present value of contingency	1,764	(7)
Ending Balance	$ 12,364	$ 2,960

Fair Value Measurements - Sum_3

Fair Value Measurements - Summary of Carrying Value and Fair Value of Mortgage Facilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Fair Value [Member] | Mortgage Facility Payable to Flagship Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility payable	$ 6,872	$ 7,396
Fair Value [Member] | Mortgage Facility Payable to Seacoast National Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility payable	17,529
Fair Value [Member] | Mortgage Facility Payable to Hancock Whitney Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility payable	27,089
Carrying Value [Member] | Mortgage Facility Payable to Flagship Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility payable	6,899	$ 7,396
Carrying Value [Member] | Mortgage Facility Payable to Seacoast National Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility payable	17,675
Carrying Value [Member] | Mortgage Facility Payable to Hancock Whitney Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility payable	$ 27,106

Accounts Receivable - Additiona

Accounts Receivable - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2021
Receivables [Abstract]
Receivable Collection Period	30 days

Accounts Receivable - Accounts

Accounts Receivable - Accounts Receivable, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Receivables [Abstract]
Trade receivables, net	$ 38,953	$ 31,289
Amounts due from manufacturers	7,344	7,575
Other receivables	1,354	1,331
Accounts receivable, net	$ 47,651	$ 40,195

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Inventory [Line Items]
Inventories, net	$ 230,984	$ 298,002
Work-in-process	11,358
Raw materials	11,959
New and Used Boats, Motors, and Trailers [Member]
Inventory [Line Items]
Inventories, net	193,888	289,291
Parts, Accessories, and Other [Member]
Inventory [Line Items]
Inventories, net	$ 13,779	$ 8,711

Property and Equipment - Schedu

Property and Equipment - Schedule of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 273,277	$ 228,204
Less: accumulated depreciation and amortization	(97,814)	(86,270)
Property and equipment, net	175,463	141,934
Land [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	57,330	55,549
Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	137,271	115,394
Machinery and Equipment [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	54,510	39,416
Furniture and Fixtures [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	5,897	5,233
Vehicles [Member]
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 18,269	$ 12,612

Property and Equipment - Additi

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Property Plant And Equipment [Abstract]
Depreciation and amortization	$ 13.9	$ 12.8	$ 11.6

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Weighted average remaining lease term (years)	12 years
Operating lease expense	$ 24.1	$ 13.9	$ 12.8
Variable lease expense	$ 0.7	$ 0.5	$ 0.4
Operating lease renewal term	25 years
Weighted average discount rate	5.60%

Leases - Summary of Maturities

Leases - Summary of Maturities of Lease Liabilities by Fiscal Year (Details) $ in Thousands	Sep. 30, 2021USD ($)
Operating Leases
2022	$ 16,080
2023	14,913
2024	12,714
2025	10,315
2026	9,947
Thereafter	88,190
Total lease payments	152,159
Less: interest	(44,633)
Present value of lease liabilities	$ 107,526

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 16,917	$ 10,209
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 74,097	$ 3,811

Goodwill Intangible Assets an_3

Goodwill Intangible Assets and Other Long Term Assets - Additional Information (Detail) $ in Thousands	1 Months Ended			12 Months Ended
	Jul. 31, 2021USD ($)	May 31, 2021USD ($)	Oct. 31, 2020USD ($)	Sep. 30, 2021USD ($)Segment	Sep. 30, 2020USD ($)	Sep. 30, 2019USD ($)
Schedule Of Goodwill And Other Assets [Line Items]
Accounts receivable, net				$ 47,651	$ 40,195
Inventories, net				230,984	298,002
Short-term borrowings				23,943	144,393
Accrued expenses				86,594	51,616
Accounts payable				25,739	37,343
Customer deposits				100,660	31,821	$ 24,300
Goodwill				195,563	84,240	64,006
Revenue				2,063,257	1,509,713	1,237,153
Estimated income before taxes				205,794	97,440	$ 48,953
Goodwill and other intangible assets, net				201,122	84,293
Goodwill and other intangible assets increased from acquisitions				116,800	20,200
Business acquisition, goodwill for tax purposes				$ 110,800	16,800
Number of reportable segments | Segment				2
Other long-term assets				$ 8,818	7,774
long Term Deposits and Other Long Term Investments [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Other long-term assets				8,800	$ 7,800
Nisswa Marine, Inc [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate purchase price	$ 15,300
Cruisers Yachts [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate purchase price		$ 62,700
Accounts receivable, net		3,100
Inventories, net		26,200
Short-term borrowings		11,700
Accrued expenses		10,300
Accounts payable		3,000
Goodwill		$ 40,134
Cruisers Yachts [Member] | Customer Relationships [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Weighted average useful life		2 years
SkipperBuds [Member]
Schedule Of Goodwill And Other Assets [Line Items]
Aggregate purchase price			$ 55,000
Accounts receivable, net			5,400
Inventories, net			42,300
Short-term borrowings			30,500
Accrued expenses			$ 14,600
Weighted average useful life			3 years 3 months 18 days
Maximum amount of consideration paid under earnout			$ 9,300
Fair value of contingent consideration			8,200
Customer deposits			7,500
Goodwill			56,363
Other identifiable intangibles			$ 2,000
Revenue				302,600
Estimated income before taxes				$ 31,300

Goodwill Intangible Assets an_4

Goodwill Intangible Assets and Other Long Term Assets - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date (Detail) - USD ($) $ in Thousands	1 Months Ended
	May 31, 2021	Oct. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Recognized amounts of identifiable assets acquired and liabilities assumed:
Goodwill			$ 195,563	$ 84,240	$ 64,006
Cruisers Yachts [Member]
Consideration:
Fair value of total consideration transferred	$ 61,448
Recognized amounts of identifiable assets acquired and liabilities assumed:
Current assets, net of cash acquired	29,869
Property and equipment	12,126
Intangible assets	4,602
Current liabilities	(25,283)
Total identifiable net assets acquired:	21,314
Goodwill	40,134
Total	$ 61,448
SkipperBuds [Member]
Consideration:
Cash purchase price and net working capital adjustments, net of cash acquired of $30,615		$ 50,261
Contingent consideration liability		8,200
Fair value of total consideration transferred		58,461
Recognized amounts of identifiable assets acquired and liabilities assumed:
Current assets, net of cash acquired		50,688
Property and equipment		4,859
Intangible assets		1,978
Current liabilities		(55,427)
Total identifiable net assets acquired:		2,098
Goodwill		56,363
Total		$ 58,461

Goodwill Intangible Assets an_5

Goodwill Intangible Assets and Other Long Term Assets - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date (Parenthetical) (Detail) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Oct. 31, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019	May 31, 2021
Business Acquisition [Line Items]
Cash purchase price and net working capital adjustments, net of cash acquired		$ 134,205	$ 19,766	$ 40,713
Cruisers Yachts [Member]
Business Acquisition [Line Items]
Current assets, net of cash acquired					$ 5,993
SkipperBuds [Member]
Business Acquisition [Line Items]
Current assets, net of cash acquired	$ 30,615
Cash purchase price and net working capital adjustments, net of cash acquired	$ 30,615

Goodwill Intangible Assets an_6

Goodwill Intangible Assets and Other Long Term Assets - Summary of Changes in Carrying Amount of Goodwill by Reportable Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Goodwill [Line Items]
Beginning balance	$ 84,240	$ 64,006
Goodwill acquired	111,440	19,614
Foreign currency translation	(117)	620
Ending balance	195,563	84,240
Retail Operations [Member]
Goodwill [Line Items]
Beginning balance	84,240	64,006
Goodwill acquired	71,306	19,614
Foreign currency translation	(117)	620
Ending balance	155,429	$ 84,240
Product Manufacturing [Member]
Goodwill [Line Items]
Goodwill acquired	40,134
Ending balance	$ 40,134

Accrued Expenses - Summary of A

Accrued Expenses - Summary of Accrued Expenses (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	$ 86,594	$ 51,616
Payroll Accruals [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	42,138	23,142
Customer and Storage Accruals [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	17,390	11,381
Sales and Other Taxes Payable [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	8,462	5,829
Other Accruals [Member]
Accounts Payable And Accrued Liabilities Current [Line Items]
Accrued expenses	$ 18,604	$ 11,264

Short-Term Borrowings and Lon_3

Short-Term Borrowings and Long-Term Debt - Additional Information (Detail) - USD ($)	1 Months Ended		12 Months Ended
	Jul. 31, 2021	May 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Line Of Credit Facility [Line Items]
Additional borrowings			$ 79,000,000
Unamortized debt issuance costs			200,000
Long-term debt, net of current maturities			47,498,000	$ 7,343,000
Mortgage Facility [Member]
Line Of Credit Facility [Line Items]
Long-term debt, net of current maturities			$ 7,400,000
Minimum [Member]
Line Of Credit Facility [Line Items]
Current ratio			1.20%
Borrowing Base Amount and Aging Inventory [Member]
Line Of Credit Facility [Line Items]
Inventory and working capital needs			$ 24,100,000
Interest rate on short-term borrowings			4.20%	4.20%
Credit Facility [Member]
Line Of Credit Facility [Line Items]
Line of credit facility, term	1 year
Amount of borrowing availability	$ 500,000,000
Line of Credit Facility, Description			the Company amended its Credit Facility to increase the borrowing availability to $500.0 million, extend the term to expire by one year to July 2024, with two one-year options to renew, subject to lender approval, and modify certain provisions to provide additional liquidity to the Company.
Additional extension for two one-year periods	Jul. 31, 2024	Jul. 31, 2024
Interest rate for amounts outstanding under the Credit Facility			3.45%
Credit Facility [Member] | Borrowing Base Amount and Aging Inventory [Member]
Line Of Credit Facility [Line Items]
Amount of borrowing availability		$ 500,000,000
Line of Credit Facility, Description			The Credit Facility expires in July 2024, subject to extension for two one-year periods, with lender approval
Leverage ratio			2.75%
Credit Facility interest rate description			The interest rate for amounts outstanding under the Credit Facility is 345 basis points plus the greater of 75 basis points or the one-month LIBOR.
Debt instrument, covenant compliance			The covenants include provisions that our leverage ratio must not exceed 2.75 to 1.0 and that our current ratio must be greater than 1.2 to 1.0.
Interest rate for amounts outstanding under the Credit Facility			0.75%
Unused line fee on the unused portion of the amended Credit Facility			0.10%
New inventory mature date			1080 days
Used inventory maturity period			361 days
Real estate property pledged for collateral			$ 0

Short-Term Borrowings and Lon_4

Short-Term Borrowings and Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Long-term debt	$ 51,680
Less: current portion	(3,587)	$ (507)
Less: unamortized portion of debt issuance costs	(595)
Long-term debt, net current portion and unamortized debt issuance costs	47,498	$ 7,343
Mortgage Facility [Member]
Debt Instrument [Line Items]
Long-term debt	51,680
Long-term debt, net current portion and unamortized debt issuance costs	7,400
Mortgage Facility [Member] | Mortgage Facility Payable to Flagship Bank [Member]
Debt Instrument [Line Items]
Long-term debt	6,899
Mortgage Facility [Member] | Mortgage Facility Payable to Seacoast National Bank [Member]
Debt Instrument [Line Items]
Long-term debt	17,675
Mortgage Facility [Member] | Mortgage facility payable to Hancock Whitney Bank [Member]
Debt Instrument [Line Items]
Long-term debt	$ 27,106

Short-Term Borrowings and Lon_5

Short-Term Borrowings and Long-Term Debt - Schedule of Long-Term Debt (Parenthetical) (Detail) - Mortgage Facility [Member] $ in Millions	12 Months Ended
	Sep. 30, 2021USD ($)
Mortgage Facility Payable to Flagship Bank [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.25%
Debt instrument basis percentage	1.00%
Principal and interest payments with a balloon payment	$ 4
Additional extension for two one-year periods	Aug. 31, 2027
Mortgage Facility Payable to Flagship Bank [Member] | Interest Rate Prime [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	prime minus 100 basis points with a floor of 2.00%
Mortgage Facility Payable to Flagship Bank [Member] | Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.00%
Mortgage Facility Payable to Seacoast National Bank [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.00%
Debt instrument basis percentage	0.625%
Principal and interest payments with a balloon payment	$ 6
Additional extension for two one-year periods	Sep. 30, 2031
Mortgage Facility Payable to Seacoast National Bank [Member] | Interest Rate Prime [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	greater of 3.00% or prime minus 62.5 basis points
Mortgage facility payable to Hancock Whitney Bank [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.63%
Debt instrument basis percentage	0.625%
Principal and interest payments with a balloon payment	$ 15.5
Additional extension for two one-year periods	Nov. 30, 2027
Percentage of outstanding borrowings hedged	50.00%
Fixed interest rate	3.20%
Mortgage facility payable to Hancock Whitney Bank [Member] | Interest Rate Prime [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	prime minus 62.5 basis points with a floor of 2.25%
Mortgage facility payable to Hancock Whitney Bank [Member] | Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.25%
Revolving mortgage facility with FineMark National Bank & Trust [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.00%
Debt instrument basis percentage	0.25%
Additional extension for two one-year periods	Oct. 31, 2027
Current available borrowings	$ 26.1
Revolving mortgage facility with FineMark National Bank & Trust [Member] | Base Rate
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	prime minus 25 basis points with a floor of 3.00%
Revolving mortgage facility with FineMark National Bank & Trust [Member] | Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.00%

Short-Term Borrowings and Lon_6

Short-Term Borrowings and Long-Term Debt - Summary of Aggregate Maturities of Long Term Debt (Detail) $ in Thousands	Sep. 30, 2021USD ($)
Debt Disclosure [Abstract]
2022	$ 3,587
2023	3,587
2024	3,587
2025	3,587
2026	3,587
Thereafter	33,745
Total long-term debt	$ 51,680

Income Taxes - Summary of Incom

Income Taxes - Summary of Income Before Income Tax Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Income before income tax provision:
United States	$ 202,643	$ 94,854	$ 46,986
Other	3,151	2,586	1,967
Income before income tax provision	$ 205,794	$ 97,440	$ 48,953

Income Taxes - Components of In

Income Taxes - Components of Income Taxes Provision (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Current provision:
Federal	$ 38,028	$ 17,654	$ 7,933
Foreign	1,516	654	516
State	6,527	1,365	135
Total current provision	46,071	19,673	8,584
Deferred provision:
Federal	4,201	2,262	2,285
State	543	871	2,099
Total deferred provision	4,744	3,133	4,384
Total income tax provision	$ 50,815	$ 22,806	$ 12,968

Income Taxes - Summary of Tax R

Income Taxes - Summary of Tax Rates (Detail)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Federal tax provision	21.00%	21.00%	21.00%
State taxes, net of federal benefit	3.70%	3.10%	4.10%
Stock-based compensation	(0.70%)	(0.50%)
Valuation allowance		(0.20%)	(0.10%)
Foreign rate differential	0.10%	0.10%	0.20%
Other	0.60%	(0.10%)	1.30%
Effective tax rate	24.70%	23.40%	26.50%

Income Taxes - Components of De

Income Taxes - Components of Deferred Tax Asset (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 30, 2020
Deferred tax assets:
Inventories	$ 771	$ 808
Operating lease liabilities	25,924	9,926
Accrued expenses	1,225	640
Stock-based compensation	2,810	2,170
Tax loss carryforwards	667	810
Other	852	268
Total long-term deferred tax assets	32,249	14,622
Deferred tax liabilities:
Depreciation and amortization	(16,226)	(9,095)
Operating lease right-of-use assets	(25,291)	(10,036)
Total long-term deferred tax liabilities	(41,517)	(19,131)
Net deferred tax liabilities	$ (9,268)	$ (4,509)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2017
Income Taxes [Line Items]
Deferred tax asset	$ 700,000
Domestic Country
Income Taxes [Line Items]
Net operating loss (NOL) carryforwards	$ 11,400,000	$ 0
Minimum [Member] | State And Local Jurisdiction
Income Taxes [Line Items]
Operating loss carry forwards expiration year	2029
Maximum [Member] | State And Local Jurisdiction
Income Taxes [Line Items]
Operating loss carry forwards expiration year	2032

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Mar. 31, 2020
Equity [Abstract]
Shares approved to repurchase		10,000,000
Shares purchased	6,767,021
Aggregate purchase price	$ 127.4
Remaining shares available for future purchases under share repurchase program, amount	$ 9.4

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Net proceeds from issuance of common stock under incentive compensation and employee purchase plans	$ 2,626	$ 4,629	$ 2,412
Selling, General, and Administrative Expenses [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense, approximately	$ 9,700	$ 7,500	$ 6,500

The Incentive Stock Plans - Add

The Incentive Stock Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
	Feb. 29, 2020	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019	Jan. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant fair value of options granted		$ 25.29
Options granted			0	0
Total intrinsic value of options exercised		$ 1.8	$ 3.8	$ 1.4
Unrecognized compensation cost related to non-vested restricted stock awards		$ 0.1
Weighted average period unrecognized compensation costs related to non-vested restricted awards are expected to be recognized		2 years
Incentive Stock Plan 2011 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized					3,200,456
Additional common shares authorized	1,000,000
Expiration of Plan 2011		2030-02
Contractual term of plan 2011		10 years
Incentive Stock Plan 2011 [Member] | Subject To Award [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized		4,000,000
Incentive Stock Plan 2011 [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares authorized	4,200,456
Incentive Stock Plan 2007 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of Common stock shares available		200,456

The Incentive Stock Plans - Sum

The Incentive Stock Plans - Summary of Activity from Incentive Stock Plans (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted, Options Outstanding		0	0
Stock Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Available for Grant, Beginning Balance	1,275,415
Options granted, Shares Available for Grant	(5,000)
Options cancelled/forfeited/expired, Shares Available for Grant	10,000
Restricted stock awards granted, Shares Available for Grant	(344,616)
Restricted stock awards forfeited, Shares Available for Grant	6,325
Additional shares of stock issued, Shares Available for Grant	(24,063)
Shares Available for Grant, Ending Balance	918,061	1,275,415
Options Outstanding, Beginning Balance	196,329
Options granted, Options Outstanding	5,000
Options cancelled/forfeited/expired, Options Outstanding	(10,000)
Options exercised, Options Outstanding	(76,079)
Options Outstanding, Ending Balance	115,250	196,329
Exercisable as of September 30, 2021, Options Outstanding	110,916
Aggregate Intrinsic Value	$ 4,085	$ 2,636
Exercisable as of September 30, 2021, Aggregate Intrinsic Value	$ 4,044
Weighted Average Exercise Price, Beginning Balance	$ 12.12
Options granted, Weighted Average Exercise Price	48.52
Options cancelled/forfeited/expired, Weighted Average Exercise Price	7.54
Options exercised, Weighted Average Exercise Price	13.68
Weighted Average Exercise Price, Ending Balance	13.08	$ 12.12
Exercisable as of September 30, 2021, Weighted Average Exercise Price	$ 12.06
Weighted Average Remaining Contractual Life	1 year 10 months 24 days	2 years 6 months
Exercisable as of September 30, 2021, Weighted Average Remaining Contractual Life	2 years

Employee Stock Purchase Plan -

Employee Stock Purchase Plan - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Feb. 28, 2019	Sep. 30, 2021	Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued		28,588,863	28,130,312
Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional common shares authorized	500,000
Common stock available for issuance		1,500,000
Stock Purchase Plan, requisite continuous service		1 year
Annual offerings description		implementation of annual offerings beginning on the first day of October in each of the years 2008 through 2027, with each offering terminating on September 30 of the following year.
Closing price of common stock on the first and last day of the offering		85.00%
Percentage not exceeding to periodic payment of purchase price		10.00%
Maximum common stock value purchased by participant annually		$ 25,000
Common stock, shares issued		1,139,547
1998 Employee Stock Purchase Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Additional Common Shares Authorized		52,837

Employee Stock Purchase Plan _2

Employee Stock Purchase Plan - Weighted Average Assumptions of Employee Stock Purchase Plan (Detail) - Stock Purchase Plan [Member]	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Dividend yield	0.00%	0.00%	0.00%
Risk-free interest rate	0.10%	0.80%	2.40%
Volatility	69.60%	69.70%	48.30%
Expected life	6 months	6 months	6 months

Restricted Stock Awards - Addit

Restricted Stock Awards - Additional Information (Detail) $ in Millions	12 Months Ended
	Sep. 30, 2021USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested restricted stock awards	$ 0.1
Weighted average period unrecognized compensation costs related to non-vested restricted awards are expected to be recognized	2 years
Restricted Stock Awards [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested restricted stock awards	$ 11.1
Weighted average period unrecognized compensation costs related to non-vested restricted awards are expected to be recognized	2 years 1 month 6 days
Restricted Stock Awards [Member] | Minimum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting periods of restricted stock award	2 years
Percentage of actual amount of award earned based on actual specified performance target met	0.00%
Restricted Stock Awards [Member] | Maximum [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting periods of restricted stock award	4 years
Percentage of actual amount of award earned based on actual specified performance target met	175.00%

Restricted Stock Awards - Restr

Restricted Stock Awards - Restricted Stock Award Activity (Detail) - Restricted Stock Awards [Member]	12 Months Ended
	Sep. 30, 2021$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares/ Units, Non-vested beginning balance | shares	902,631
Shares/ Units, Awards granted | shares	344,616
Shares/ Units, Awards vested | shares	(329,493)
Shares/ Units, Awards forfeited | shares	(6,325)
Shares/ Units, Non-vested ending balance | shares	911,429
Weighted Average Grant Date Fair Value, Non-vested beginning balance | $ / shares	$ 18.08
Weighted Average Grant Date Fair Value, Awards granted | $ / shares	30.54
Weighted Average Grant Date Fair Value, Awards vested | $ / shares	19.32
Weighted Average Grant Date Fair Value, Awards forfeited | $ / shares	19.82
Weighted Average Grant Date Fair Value, Non-vested ending balance | $ / shares	$ 22.33

Net Income Per Share - Basic an

Net Income Per Share - Basic and Diluted Net Income Per Share (Detail) - shares	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Weighted average common shares outstanding used in calculating basic net income per share	22,010,130	21,547,665	22,294,114
Effect of dilutive options and non-vested restricted stock awards	849,368	577,673	587,033
Weighted average common and common equivalent shares used in calculating diluted net income per share	22,859,498	22,125,338	22,881,147

Net Income Per Share - Addition

Net Income Per Share - Additional Information (Detail) - shares	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Stock Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from earnings per share calculation	1,619	9,650	10,988

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($)	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Commitments And Contingencies Disclosure [Abstract]
Costs incurred for store closings and lease terminations	$ 0	$ 1,700,000	$ 3,100,000
Workers compensation insurance policies	$ 1,600,000

Employee 401(k) Profit Sharin_2

Employee 401(k) Profit Sharing Plans - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Compensation And Retirement Disclosure [Abstract]
Duration of profit sharing plan	90 days
Introductory period of profit sharing	April 1 or October 1
Employees eligibility age for participating in profit sharing plan	21 years
Total participants contributions in Profit sharing plan	50.00%
Maximum of each participants compensation	5.00%
Contribution under the Profit sharing plan	$ 5	$ 2.7	$ 2.3

Segment Information - Additiona

Segment Information - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2021Segmentft
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Minimum [Member]
Segment Reporting Information [Line Items]
Number of models producing premium yachts	33
Maximum [Member]
Segment Reporting Information [Line Items]
Number of models producing premium yachts	60

Segment Information - Summary o

Segment Information - Summary of Depreciation and Amortization of Reportable Segments (Detail) - Operating Segments [Member] - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Segment Reporting Information [Line Items]
Depreciation	$ 13,853	$ 12,756	$ 11,583
Amortization	1,753	16	14
Retail Operations [Member]
Segment Reporting Information [Line Items]
Depreciation	13,821	12,756	11,583
Amortization	1,429	$ 16	$ 14
Product Manufacturing [Member]
Segment Reporting Information [Line Items]
Depreciation	32
Amortization	$ 324

Segment Information - Summary_2

Segment Information - Summary of Revenue and Income from Operations of Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Revenue:
Revenue	$ 2,063,257	$ 1,509,713	$ 1,237,153
Income from operations:
Income from operations	209,459	106,715	60,532
Operating Segments [Member] | Retail Operations [Member]
Revenue:
Revenue	2,043,613	1,509,713	1,237,153
Income from operations:
Income from operations	207,034	$ 106,715	$ 60,532
Operating Segments [Member] | Product Manufacturing [Member]
Revenue:
Revenue	44,000
Income from operations:
Income from operations	6,940
Elimination of Intersegment [Member]
Revenue:
Revenue	(24,356)
Income from operations:
Income from operations	$ (4,515)