MarineMax (HZO) 10-Q 27 Jul 21 2021 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2021	Jul. 23, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q3
Trading Symbol	HZO
Entity Registrant Name	MARINEMAX, INC.
Entity Central Index Key	0001057060
Current Fiscal Year End Date	--09-30
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Common Stock, Shares Outstanding		21,745,395
Security Exchange Name	NYSE
Title of 12(b) Security	Common Stock, par value $.001 per share
Entity Interactive Data Current	Yes
Entity Shell Company	false
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 Quarterly Report	true
Document Transition Report	false

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Revenue	$ 666,328	$ 498,304	$ 1,600,947	$ 1,110,951
Cost of sales	461,654	374,851	1,116,066	828,704
Gross profit	204,674	123,453	484,881	282,247
Selling, general, and administrative expenses	123,766	74,838	319,120	208,284
Income from operations	80,908	48,615	165,761	73,963
Interest expense	639	2,133	2,999	8,490
Income before income tax provision	80,269	46,482	162,762	65,473
Income tax provision	20,651	11,555	40,609	16,422
Net income	$ 59,618	$ 34,927	$ 122,153	$ 49,051
Basic net income per common share	$ 2.69	$ 1.62	$ 5.53	$ 2.28
Diluted net income per common share	$ 2.59	$ 1.58	$ 5.33	$ 2.23
Weighted average number of common shares used in computing net income per common share:
Basic	22,132,915	21,499,408	22,100,190	21,491,117
Diluted	23,037,679	22,045,900	22,922,526	21,965,355

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 59,618	$ 34,927	$ 122,153	$ 49,051
Other comprehensive gain (loss), net of tax:
Foreign currency translation adjustments	260	383	343	539
Interest rate swap contract	(101)		92
Total other comprehensive income, net of tax	159	383	435	539
Comprehensive income	$ 59,777	$ 35,310	$ 122,588	$ 49,590

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2021	Sep. 30, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 200,121	$ 155,493
Accounts receivable, net	60,195	40,195
Inventories, net	209,418	298,002
Prepaid expenses and other current assets	18,316	9,637
Total current assets	488,050	503,327
Property and equipment, net of accumulated depreciation of $86,270 and $95,706	166,058	141,934
Operating lease right-of-use assets, net	104,641	37,991
Goodwill and other intangible assets, net	186,691	84,293
Other long-term assets	10,650	7,774
Total assets	956,090	775,319
CURRENT LIABILITIES:
Accounts payable	28,741	37,343
Contract liabilities (customer deposits)	86,704	31,821
Accrued expenses	89,696	52,123
Short-term borrowings	2,861	144,393
Current maturities on long-term debt	3,293
Current operating lease liabilities	10,275	6,854
Total current liabilities	221,570	272,534
Long-term debt, net of current maturities	48,374	7,343
Noncurrent operating lease liabilities	96,830	33,473
Deferred tax liabilities, net	8,419	4,509
Other long-term liabilities	8,126	2,063
Total liabilities	383,319	319,922
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS’ EQUITY:
Preferred stock, $.001 par value, 1,000,000 shares authorized, none issued or outstanding as of September 30, 2020 and June 30, 2021
Common stock, $.001 par value, 40,000,000 shares authorized, 28,130,312 and 28,464,364 shares issued and 21,863,291 and 21,907,520 shares outstanding as of September 30, 2020 and June 30, 2021, respectively	28	28
Additional paid-in capital	288,923	280,436
Accumulated other comprehensive income	1,264	829
Retained earnings	399,852	277,699
Treasury stock, at cost, 6,267,021 and 6,556,844 shares held as of September 30, 2020 and June 30, 2021, respectively	(117,296)	(103,595)
Total shareholders’ equity	572,771	455,397
Total liabilities and shareholders’ equity	$ 956,090	$ 775,319

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Sep. 30, 2020
Statement Of Financial Position [Abstract]
Property and equipment, accumulated depreciation	$ 95,706	$ 86,270
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	28,464,364	28,130,312
Common stock, shares outstanding	21,907,520	21,863,291
Treasury stock, shares	6,556,844	6,267,021

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Earnings [Member]	Retained Earnings [Member]	Retained Earnings [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Treasury Stock [Member]
Beginning Balance at Sep. 30, 2019	$ 368,819		$ 28	$ 269,969	$ (669)	$ 202,455		$ (102,964)
Beginning Balance, Shares at Sep. 30, 2019			27,508,473
Net income	9,059					9,059
Shares issued pursuant to employee stock purchase plan	505			505
Shares issued pursuant to employee stock purchase plan, Shares			38,352
Shares issued upon vesting of equity awards, net of minimum tax withholding	(476)			(476)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares			123,993
Shares issued upon exercise of stock options	111			111
Shares issued upon exercise of stock options, Shares			13,000
Stock-based compensation	1,513			1,513
Stock-based compensation, Shares			2,946
Other comprehensive income (loss)	606				606
Ending Balance at Dec. 31, 2019	380,747		$ 28	271,622	(63)	212,124		(102,964)
Ending Balance (Accounting Standards Update 2016-02 [Member]) at Dec. 31, 2019		$ 610					$ 610
Ending Balance, Shares at Dec. 31, 2019			27,686,764
Beginning Balance at Sep. 30, 2019	368,819		$ 28	269,969	(669)	202,455		(102,964)
Beginning Balance, Shares at Sep. 30, 2019			27,508,473
Net income	49,051
Other comprehensive income (loss)	539
Ending Balance at Jun. 30, 2020	425,025		$ 28	276,606	(130)	252,116		(103,595)
Ending Balance, Shares at Jun. 30, 2020			27,798,415
Beginning Balance at Dec. 31, 2019	380,747		$ 28	271,622	(63)	212,124		(102,964)
Beginning Balance, Shares at Dec. 31, 2019			27,686,764
Net income	5,065					5,065
Purchase of treasury stock	(472)							(472)
Shares issued upon exercise of stock options	414			414
Shares issued upon exercise of stock options, Shares			28,167
Stock-based compensation	1,773			1,773
Stock-based compensation, Shares			2,732
Other comprehensive income (loss)	(450)				(450)
Ending Balance at Mar. 31, 2020	387,077		$ 28	273,809	(513)	217,189		(103,436)
Ending Balance, Shares at Mar. 31, 2020			27,717,663
Net income	34,927					34,927
Purchase of treasury stock	(159)							(159)
Shares issued pursuant to employee stock purchase plan	499			499
Shares issued pursuant to employee stock purchase plan, Shares			56,389
Shares issued upon vesting of equity awards, net of minimum tax withholding	(29)			(29)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares			9,985
Shares issued upon exercise of stock options	89			89
Shares issued upon exercise of stock options, Shares			10,000
Stock-based compensation	2,238			2,238
Stock-based compensation, Shares			4,378
Other comprehensive income (loss)	383				383
Ending Balance at Jun. 30, 2020	425,025		$ 28	276,606	(130)	252,116		(103,595)
Ending Balance, Shares at Jun. 30, 2020			27,798,415
Beginning Balance at Sep. 30, 2020	$ 455,397		$ 28	280,436	829	277,699		(103,595)
Beginning Balance, Shares at Sep. 30, 2020	28,130,312		28,130,312
Net income	$ 23,600					23,600
Shares issued pursuant to employee stock purchase plan	740			740
Shares issued pursuant to employee stock purchase plan, Shares			83,572
Shares issued upon vesting of equity awards, net of minimum tax withholding	(871)			(871)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares			121,303
Shares issued upon exercise of stock options	783			783
Shares issued upon exercise of stock options, Shares			56,746
Stock-based compensation	2,013			2,013
Stock-based compensation, Shares			1,777
Other comprehensive income (loss)	920				920
Ending Balance at Dec. 31, 2020	482,582		$ 28	283,101	1,749	301,299		(103,595)
Ending Balance, Shares at Dec. 31, 2020			28,393,710
Beginning Balance at Sep. 30, 2020	$ 455,397		$ 28	280,436	829	277,699		(103,595)
Beginning Balance, Shares at Sep. 30, 2020	28,130,312		28,130,312
Net income	$ 122,153
Other comprehensive income (loss)	435
Ending Balance at Jun. 30, 2021	$ 572,771		$ 28	288,923	1,264	399,852		(117,296)
Ending Balance, Shares at Jun. 30, 2021	28,464,364		28,464,364
Beginning Balance at Dec. 31, 2020	$ 482,582		$ 28	283,101	1,749	301,299		(103,595)
Beginning Balance, Shares at Dec. 31, 2020			28,393,710
Net income	38,935					38,935
Shares issued upon vesting of equity awards, net of minimum tax withholding	(154)			(154)
Shares issued upon vesting of equity awards, net of minimum tax withholding, Shares			9,899
Shares issued upon exercise of stock options	186			186
Shares issued upon exercise of stock options, Shares			15,333
Stock-based compensation	2,399			2,399
Stock-based compensation, Shares			1,597
Other comprehensive income (loss)	(644)				(644)
Ending Balance at Mar. 31, 2021	523,304		$ 28	285,532	1,105	340,234		(103,595)
Ending Balance, Shares at Mar. 31, 2021			28,420,539
Net income	59,618					59,618
Purchase of treasury stock	(13,701)							(13,701)
Shares issued pursuant to employee stock purchase plan	838			838
Shares issued pursuant to employee stock purchase plan, Shares			38,412
Shares issued upon exercise of stock options	71			71
Shares issued upon exercise of stock options, Shares			4,500
Stock-based compensation	2,482			2,482
Stock-based compensation, Shares			913
Other comprehensive income (loss)	159				159
Ending Balance at Jun. 30, 2021	$ 572,771		$ 28	$ 288,923	$ 1,264	$ 399,852		$ (117,296)
Ending Balance, Shares at Jun. 30, 2021	28,464,364		28,464,364

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 122,153	$ 49,051
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,579	9,454
Deferred income tax provision	3,910	2,869
Gain on sale of property and equipment		(822)
Proceeds from insurance settlements	941	703
Stock-based compensation expense	6,894	5,524
(Increase) decrease in, net of effects of acquisitions —
Accounts receivable, net	(13,452)	(27,722)
Inventories, net	157,036	163,372
Prepaid expenses and other assets	(5,329)	(1,799)
(Decrease) Increase in, net of effects of acquisitions —
Accounts payable	(13,316)	5,721
Contract liabilities (customer deposits)	47,110	5,801
Accrued expenses and other liabilities	12,088	9,181
Net cash provided by operating activities	329,614	221,333
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(18,473)	(8,234)
Cash used in acquisition of businesses, net of cash acquired	(111,709)	(1,400)
Purchases of investments	(2,250)
Proceeds from insurance settlements	1,080
Proceeds from sale of property and equipment	247	2,410
Net cash used in investing activities	(131,105)	(7,224)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net payments for short-term borrowings	(183,737)	(165,016)
Proceeds from long-term debt	46,375
Payments for long-term debt	(1,539)
Payments for debt issuance costs	(910)
Contingent acquisition consideration payments	(1,000)	(148)
Purchase of treasury stock	(13,701)	(631)
Net proceeds from issuance of common stock under incentive compensation and employee purchase plans	2,619	1,618
Payments on tax withholdings for equity awards	(2,178)	(1,703)
Net cash used in financing activities	(154,071)	(165,880)
Effect of exchange rate changes on cash	190	179
NET INCREASE IN CASH AND CASH EQUIVALENTS	44,628	48,408
CASH AND CASH EQUIVALENTS, beginning of period	155,493	38,511
CASH AND CASH EQUIVALENTS, end of period	200,121	86,919
Cash paid for:
Interest	3,830	11,663
Income taxes	31,299	4,904
Non-cash items:
Contingent consideration liabilities from acquisitions	$ 8,200
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

Company Background	9 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Company Background	1. COMPANY BACKGROUND: We are the largest recreational boat and yacht retailer in the United States. 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 June 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 boats and yachts with sales through our select retail dealership locations and through independent dealers. We are the nation’s 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 33% of our revenue in fiscal 2020. Sales of new Sea Ray and Boston Whaler boats, both divisions of Brunswick, accounted for approximately 15% and 16%, respectively, of our revenue in fiscal 2020. 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 9% of our revenue in fiscal 2020. 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. In May 2021, we purchased all of the outstanding equity of KCS International Inc. (“Cruisers Yachts”). provides us a premium, American built In October 2020, we purchased all of the outstanding equity of Skipper Marine Corp., Skipper Marine of Madison, Inc., Skipper Marine of Fox Valley, Inc., Skipper Bud’s of Illinois, Inc., Skipper Marine of Chicago-Land, Inc., Skipper Marine of Michigan, Inc., and Skipper Marine of Ohio, LLC, (collectively, “SkipperBud’s”). significantly increased our presence in the Great Lakes region and the West Coast of the United States. SkipperBud’s is one of the largest boat sales, brokerage, service and marina/storage groups in the United States . 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 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. 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 global pandemic . We are As the COVID-19 pandemic is complex and evolving rapidly with many unknowns, the Company will continue to monitor ongoing developments and respond accordingly. 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 51 %, 54 % and 54 % of our revenue during fiscal 2018, 2019, and 2020, 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.

Basis of Presentation

Basis of Presentation	9 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Basis of Presentation	2. BASIS OF PRESENTATION: These unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States for interim financial information, the instructions to Quarterly Report on Form 10-Q, and Rule 10-01 of Regulation S-X and should be read in conjunction with our Annual Report on Form 10-K for the fiscal year ended September 30, 2020. Accordingly, these unaudited condensed consolidated financial statements do not include all of the information and footnote disclosures required by accounting principles generally accepted in the United States for complete financial statements. All adjustments, consisting of only normal recurring adjustments considered necessary for fair presentation, have been reflected in these unaudited condensed consolidated financial statements. As of June 30, 2021, our financial instruments consisted of cash and cash equivalents, accounts receivable, accounts payable, customer deposits, short-term borrowings, long-term debt, and an interest rate swap contract. The carrying amounts of our financial instruments reported on the balance sheet as of June 30, 2021, approximated fair value due either to length to maturity or existence of variable interest rates, which approximate prevailing market rates. The interest rate swap contract is reported at fair value and is designated as a cash flow hedge with changes in fair value reported in other comprehensive income. The operating results for the nine months ended June 30, 2021, are not necessarily indicative of the results that may be expected in future periods. The preparation of unaudited condensed 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 as of the date of the unaudited condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Significant estimates made by us in the accompanying unaudited condensed consolidated financial statements include valuation allowances, valuation of goodwill and intangible assets, valuation of long-lived assets, and valuation of accruals. Actual results could differ from those estimates. 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 17. All references to the “Company,” “our company,” “we,” “us,” and “our” mean, as a combined company, MarineMax, Inc. and the 30 recreational boat dealers, four boat brokerage operations, two full-service yacht repair operations, and one manufacturer acquired as of June 30, 2021 (the “acquired dealers,” and together with the brokerage and repair operations, “operating subsidiaries” or the “acquired companies”). The unaudited condensed consolidated financial statements include our accounts and the accounts of our subsidiaries, all of which are wholly owned. All significant intercompany transactions and accounts have been eliminated.

New Accounting Pronouncements

New Accounting Pronouncements	9 Months Ended
	Jun. 30, 2021
Accounting Changes And Error Corrections [Abstract]
New Accounting Pronouncements	3. NEW ACCOUNTING PRONOUNCEMENTS: In August 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-15, Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract, 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 Accounting Standards Codification (“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. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses. 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.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Jun. 30, 2021
Revenue From Contract With Customer [Abstract]
Revenue Recognition	4. 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 or delivery to the customer. The transaction price is determined with the customer at the time of sale. Customers may trade in boats 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 market data and applied as payment to the contract price for the purchased boat. At the time of acceptance or delivery, the customer is able to direct the use of, and obtain substantially all of the benefits of, the boat, motor, or trailer at such time. 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 or delivery to 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 unaudited condensed consolidated financial statements taken as a whole as of June 30, 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. 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 or delivery to the dealer. At the time of acceptance or delivery, 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 delivery or acceptance by the customers. Contract assets, recorded in prepaid expenses and other current assets, totaled approximately $2.6 million and $6.8 million as of September 30, 2020 and June 30, 2021, respectively. 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 tables set forth percentages on the timing of revenue recognition for the three and nine months ended June 30, Retail Operations Product Manufacturing Three Months Ended Three Months Ended June 30, 2020 June 30, 2021 June 30, 2020 June 30, 2021 Goods and services transferred at a point in time 94.1 % 92.4 % - 100.0 % Goods and services transferred over time 5.9 % 7.6 % - - Total revenue 100.0 % 100.0 % - 100.0 % Retail Operations Product Manufacturing Nine Months Ended Nine Months Ended June 30, 2020 June 30, 2021 June 30, 2020 June 30, 2021 Goods and services transferred at a point in time 92.6 % 92.2 % - 100.0 % Goods and services transferred over time 7.4 % 7.8 % - - Total revenue 100.0 % 100.0 % - 100.0 %

Leases

Leases	9 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Leases	5 . LEASES: The majority of leases that we enter into are real estate leases. 13 unaudited condensed consolidated balance sheet. 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. A majority 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 June 30, 2021, maturities of lease liabilities by fiscal year are summarized as follows: (Amounts in thousands) 2021 $ 4,110 2022 15,373 2023 14,116 2024 11,960 2025 9,966 Thereafter 97,233 Total lease payments 152,758 Less: interest (45,653 ) Present value of lease liabilities $ 107,105 Supplemental cash flow information related to leases was as follows (amounts in thousands): Nine Months Ended June 30, 2020 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 7,560 $ 12,911 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 1,670 $ 71,838

Inventories

Inventories	9 Months Ended
	Jun. 30, 2021
Inventory Disclosure [Abstract]
Inventories	6 . INVENTORIES: Inventory costs consist of the amount paid to acquire inventory, net of vendor consideration and purchase discounts, the cost of equipment added, reconditioning costs, and transportation costs relating to acquiring inventory for sale. We state new and used boat, motor, and trailer inventories at the lower of cost, determined on a specific-identification basis, or net realizable value. We state parts and accessories at the lower of cost, determined on an average cost basis, or net realizable value. 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 June 30, 2021, our valuation allowance for new and used boat, motor, and trailer inventories was $2.4 million and $0.6 million, respectively. If events occur and market conditions change, causing the fair value to fall below carrying value, the valuation allowance could increase. Inventories, net consisted of the following: (Amounts in thousands) As of September 30, 2020 As of June 30, 2021 New and used boats, motors, and trailers $ 289,291 $ 177,743 Parts, accessories, and other 8,711 11,838 Work-in-process - 10,108 Raw materials - 9,729 Total inventories $ 298,002 $ 209,418

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets	9 Months Ended
	Jun. 30, 2021
Asset Impairment Charges [Abstract]
Impairment of Long-Lived Assets	7 . 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 June 30, 2021.

Goodwill

Goodwill	9 Months Ended
	Jun. 30, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill	8 . GOODWILL: We account for acquisitions in accordance with FASB 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 May 2021, we purchased all of the outstanding equity of 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 preliminary 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 $5,933 $ 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, r espectively. 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 purchase price allocations are preliminary pending receipt of final valuation analysis of certain assets from our valuation advisors. 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. In October 2020, we purchased all of the outstanding equity of SkipperBud’s for . The maximum amount of consideration that can be paid under the earnout is approximately $9.3 million. The fair value of $8.2 million of the contingent consideration arrangement was estimated by a third party valuation expert by applying an income valuation approach. The earnout 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 preliminary 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 arrangement 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. 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. In total, current and previous acquisitions have resulted in the recording of $84.3 million and $186.7 million in goodwill and other intangible assets as of September 30, 2020 and June 30, 2021, respectively. 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. As of June 30, 2021 , and 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 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 during the nine months ended June 30, 2021: (Amounts in thousands) Retail Operations Product Manufacturing Total Balance as of September 30, 2020 $ 84,240 $ - $ 84,240 Goodwill acquired 56,363 40,134 96,497 Foreign currency translation 280 - 280 Balance as of June 30, 2021 $ 140,883 $ 40,134 $ 181,017

Income Taxes

Income Taxes	9 Months Ended
	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	9 . 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. During the three months ended June 30, 2020 and 2021, we recognized an income tax provision of $11.6 million and $20.7 million, respectively. During the nine months ended June 30, 2020 and 2021, we recognized an income tax provision of $16.4 million and $40.6 million, respectively. The effective income tax rate for the three months ended June 30, 2020 and 2021 was 24.9% and 25.7%, respectively .

Short-Term Borrowings and Long-

Short-Term Borrowings and Long-Term Debt	9 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Short-Term Borrowings and Long-Term Debt	10 . 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. The Credit Facility provides the Company a line of credit with asset based borrowing availability of up to $440 million for working capital and inventory financing, with the amount permissible pursuant to a borrowing base formula. The Credit Facility has a three-year May 2023 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. As of June 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 June 30, 2021, our indebtedness associated with financing our inventory and working capital needs totaled approximately $2.9 million. As of June 30, 2020 and 2021, the interest rate on the outstanding short-term borrowings was approximately 3.9% and 4.2%, respectively. As of June 30, 2021, our additional available borrowings under our Credit Facility were approximately $102.9 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. (Amounts in thousands) June 30, 2021 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 $ 7,025 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 27,584 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 3.00% (base minus 25 basis points with a floor of 3.00%). Facility matures in September 2027 — 52,284 Less current portion (3,293 ) Less unamortized portion of debt issuance costs (617 ) $ 48,374

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	11 . 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 12) and shares purchased under our Amended 2008 Employee Stock Purchase Plan (“Stock Purchase Plan”) (Note 13). We measure compensation for restricted stock awards and restricted stock units (Note 14) 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. During the three months ended June 30, 2020 and 2021, we recognized stock-based compensation expense of approximately $2.2 million and $2.5 million, respectively, and for the nine months ended June 30, 2020 and 2021, we recognized stock-based compensation expense of approximately $5.5 million and $6.9 million, respectively, in selling, general, and administrative expenses in the unaudited condensed consolidated statements of operations. Cash received from option exercises under all share-based compensation arrangements for the three months ended June 30, 2020 and 2021, was approximately $0.6 million and $0.9 million, respectively and for the nine months ended June 30, 2020 and 2021 was approximately $1.6 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	9 Months Ended
	Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
The Incentive Stock Plans	12 . THE INCENTIVE STOCK PLANS: During 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. During 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 du ring 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 June 30, 2021: Shares Available for Grant Options Outstanding Aggregate Intrinsic (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 cancelled/forfeited/expired 10,000 (10,000 ) - - Options exercised - (75,579 ) - - Restricted stock awards issued (337,616 ) - - - Restricted stock awards forfeited 6,175 - - - Additional shares of stock issued (4,287 ) - - - Balance as of June 30, 2021 949,687 110,750 $ 4,085 $ 11.49 1.9 Exercisable as of June 30, 2021 110,750 $ 4,085 $ 11.49 1.9 No options were granted for the nine months ended June 30, 2020 and 2021. The total intrinsic value of options exercised during the nine months ended June 30, 2020 and 2021, was $0.4 million and $1.8 million, respectively. 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	9 Months Ended
	Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Employee Stock Purchase Plan	13 . EMPLOYEE STOCK PURCHASE PLAN: During 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 each respective period: Three Months Ended Nine Months Ended June 30, June 30, 2020 2021 2020 2021 Dividend yield 0.0% 0.0% 0.0% 0.0% Risk-free interest rate 0.1% 0.0% 0.8% 0.1% Volatility 80.9% 68.7% 70.3% 69.5% Expected life Six Months Six Months Six Months Six Months As of June 30, 2021, we had issued 1,139,547 shares of common stock under our Stock Purchase Plan.

Restricted Stock Awards

Restricted Stock Awards	9 Months Ended
	Jun. 30, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Restricted Stock Awards	14 . 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 June 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 337,616 $ 30.13 Awards vested (165,825 ) $ 17.26 Awards forfeited (6,175 ) $ 19.82 Non-vested balance as of June 30, 2021 1,068,247 $ 22.28 As of June 30, 2021, we had approximately $12.0 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 2.2 years.

Net Income Per Share

Net Income Per Share	9 Months Ended
	Jun. 30, 2021
Earnings Per Share [Abstract]
Net Income Per Share	15 . NET INCOME PER SHARE: The following table presents shares used in the calculation of basic and diluted net income per share: Three Months Ended Nine Months Ended June 30, June 30, 2020 2021 2020 2021 Weighted average common shares outstanding used in calculating basic income per share 21,499,408 22,132,915 21,491,117 22,100,190 Effect of dilutive options and non-vested restricted stock awards 546,492 904,764 474,238 822,336 Weighted average common and common equivalent shares used in calculating diluted income per share 22,045,900 23,037,679 21,965,355 22,922,526 For the three months ended June 30, 2020 and 2021, there were 15,000 and no weighted average shares of options outstanding, respectively, that were not included in the computation of diluted 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. For the nine months ended June 30, 2020 and 2021, there were 29,601 and 578 weighted average shares of options outstanding, respectively, that were not included in the computation of diluted 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	9 Months Ended
	Jun. 30, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	16 . 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 June 30, 2021, we believe that these matters should not have a material adverse effect on our unaudited condensed consolidated financial condition, results of operations, or cash flows.

Segment Information

Segment Information	9 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Segment Information	17. 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 Manufacturing. Reportable Segments The Company’s segments are defined by management’s reporting structure and operating activities. The Company’s reportable segments are the following: Retail Operations. As of June 30, 2021, the Retail Operations segment includes the activity of our 77 retail locations in 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, where we sell 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; and we operate a yacht charter business in the 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. The Retail Operations segment includes the majority of all corporate costs. Product Manufacturing. The Product Manufacturing segment includes activity of Cruisers Yachts, a wholly-owned MarineMax subsidiary, manufacturing boats 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 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 revenue and income from operations for each of the Company’s reportable segments for the three and nine months ended June 30, Three Months Ended Nine Months Ended June 30, June 30, (Amounts in thousands) 2020 2021 2020 2021 Revenue: Retail Operations $ 498,304 $ 656,826 $ 1,110,951 $ 1,591,445 Product Manufacturing - 20,417 - 20,417 Elimination of intersegment revenue - (10,915 ) - (10,915 ) Revenue $ 498,304 $ 666,328 $ 1,110,951 $ 1,600,947 Income from operations: Retail Operations $ 48,615 $ 79,988 $ 73,963 $ 164,841 Product Manufacturing - 3,521 - 3,521 Elimination of intersegment income from operations - (2,601 ) - (2,601 ) Income from operations $ 48,615 $ 80,908 $ 73,963 $ 165,761

Subsequent Event

Subsequent Event	9 Months Ended
	Jun. 30, 2021
Subsequent Events [Abstract]
Subsequent Event	18. SUBSEQUENT EVENT: On July 9, 2021, the Company amended its Credit Facility to increase the borrowing availability to $500 million, extend the term to expire by one year to July 2024

Basis of Presentation (Policies

Basis of Presentation (Policies)	9 Months Ended
	Jun. 30, 2021
Accounting Policies [Abstract]
Fair Value of Financial Instruments	The carrying amounts of our financial instruments reported on the balance sheet as of June 30, 2021, approximated fair value due either to length to maturity or existence of variable interest rates, which approximate prevailing market rates.
Use of Estimates	The preparation of unaudited condensed 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 as of the date of the unaudited condensed consolidated financial statements and the reported amounts of revenue and expenses during the reporting periods. Significant estimates made by us in the accompanying unaudited condensed consolidated financial statements include valuation allowances, valuation of goodwill and intangible assets, valuation of long-lived assets, and valuation of accruals. Actual results could differ from those estimates. 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 17.
Consolidation	The unaudited condensed consolidated financial statements include our accounts and the accounts of our subsidiaries, all of which are wholly owned. All significant intercompany transactions and accounts have been eliminated.
New Accounting Pronouncements	In August 2018, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2018-15, Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That is a Service Contract, 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 Accounting Standards Codification (“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. In June 2016, the FASB issued ASU 2016-13, Financial Instruments — Credit Losses. 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.
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 or delivery to the customer. The transaction price is determined with the customer at the time of sale. Customers may trade in boats 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 market data and applied as payment to the contract price for the purchased boat. At the time of acceptance or delivery, the customer is able to direct the use of, and obtain substantially all of the benefits of, the boat, motor, or trailer at such time. 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 or delivery to 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 unaudited condensed consolidated financial statements taken as a whole as of June 30, 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. 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 or delivery to the dealer. At the time of acceptance or delivery, 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 delivery or acceptance by the customers. Contract assets, recorded in prepaid expenses and other current assets, totaled approximately $2.6 million and $6.8 million as of September 30, 2020 and June 30, 2021, respectively. 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 tables set forth percentages on the timing of revenue recognition for the three and nine months ended June 30, Retail Operations Product Manufacturing Three Months Ended Three Months Ended June 30, 2020 June 30, 2021 June 30, 2020 June 30, 2021 Goods and services transferred at a point in time 94.1 % 92.4 % - 100.0 % Goods and services transferred over time 5.9 % 7.6 % - - Total revenue 100.0 % 100.0 % - 100.0 % Retail Operations Product Manufacturing Nine Months Ended Nine Months Ended June 30, 2020 June 30, 2021 June 30, 2020 June 30, 2021 Goods and services transferred at a point in time 92.6 % 92.2 % - 100.0 % Goods and services transferred over time 7.4 % 7.8 % - - Total revenue 100.0 % 100.0 % - 100.0 %
Inventories	Inventory costs consist of the amount paid to acquire inventory, net of vendor consideration and purchase discounts, the cost of equipment added, reconditioning costs, and transportation costs relating to acquiring inventory for sale. We state new and used boat, motor, and trailer inventories at the lower of cost, determined on a specific-identification basis, or net realizable value. We state parts and accessories at the lower of cost, determined on an average cost basis, or net realizable value. 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 June 30, 2021, our valuation allowance for new and used boat, motor, and trailer inventories was $2.4 million and $0.6 million, respectively. If events occur and market conditions change, causing the fair value to fall below carrying value, the valuation allowance could increase.
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 June 30, 2021.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Jun. 30, 2021
Revenue From Contract With Customer [Abstract]
Summary of Percentage on Timing of Revenue Recognition	The following tables set forth percentages on the timing of revenue recognition for the three and nine months ended June 30, Retail Operations Product Manufacturing Three Months Ended Three Months Ended June 30, 2020 June 30, 2021 June 30, 2020 June 30, 2021 Goods and services transferred at a point in time 94.1 % 92.4 % - 100.0 % Goods and services transferred over time 5.9 % 7.6 % - - Total revenue 100.0 % 100.0 % - 100.0 % Retail Operations Product Manufacturing Nine Months Ended Nine Months Ended June 30, 2020 June 30, 2021 June 30, 2020 June 30, 2021 Goods and services transferred at a point in time 92.6 % 92.2 % - 100.0 % Goods and services transferred over time 7.4 % 7.8 % - - Total revenue 100.0 % 100.0 % - 100.0 %

Leases (Tables)

Leases (Tables)	9 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Summary of Maturities of Lease Liabilities by Fiscal Year	As of June 30, 2021, maturities of lease liabilities by fiscal year are summarized as follows: (Amounts in thousands) 2021 $ 4,110 2022 15,373 2023 14,116 2024 11,960 2025 9,966 Thereafter 97,233 Total lease payments 152,758 Less: interest (45,653 ) Present value of lease liabilities $ 107,105
Schedule of Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows (amounts in thousands): Nine Months Ended June 30, 2020 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 7,560 $ 12,911 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 1,670 $ 71,838

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Jun. 30, 2021
Inventory Disclosure [Abstract]
Summary of Inventories	Inventories, net consisted of the following: (Amounts in thousands) As of September 30, 2020 As of June 30, 2021 New and used boats, motors, and trailers $ 289,291 $ 177,743 Parts, accessories, and other 8,711 11,838 Work-in-process - 10,108 Raw materials - 9,729 Total inventories $ 298,002 $ 209,418

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Jun. 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 during the nine months ended June 30, 2021: (Amounts in thousands) Retail Operations Product Manufacturing Total Balance as of September 30, 2020 $ 84,240 $ - $ 84,240 Goodwill acquired 56,363 40,134 96,497 Foreign currency translation 280 - 280 Balance as of June 30, 2021 $ 140,883 $ 40,134 $ 181,017
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 preliminary 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 $5,933 $ 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 preliminary 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 arrangement 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

Short-Term Borrowings and Lon_2

Short-Term Borrowings and Long-Term Debt (Tables)	9 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Schedule of Long-term Debt	The below table summarizes the Company's long-term debt. (Amounts in thousands) June 30, 2021 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 $ 7,025 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 27,584 Revolving mortgage facility with FineMark National Bank & Trust bearing interest at 3.00% (base minus 25 basis points with a floor of 3.00%). Facility matures in September 2027 — 52,284 Less current portion (3,293 ) Less unamortized portion of debt issuance costs (617 ) $ 48,374

The Incentive Stock Plans (Tabl

The Incentive Stock Plans (Tables)	9 Months Ended
	Jun. 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 June 30, 2021: Shares Available for Grant Options Outstanding Aggregate Intrinsic (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 cancelled/forfeited/expired 10,000 (10,000 ) - - Options exercised - (75,579 ) - - Restricted stock awards issued (337,616 ) - - - Restricted stock awards forfeited 6,175 - - - Additional shares of stock issued (4,287 ) - - - Balance as of June 30, 2021 949,687 110,750 $ 4,085 $ 11.49 1.9 Exercisable as of June 30, 2021 110,750 $ 4,085 $ 11.49 1.9

Employee Stock Purchase Plan (T

Employee Stock Purchase Plan (Tables)	9 Months Ended
	Jun. 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 each respective period: Three Months Ended Nine Months Ended June 30, June 30, 2020 2021 2020 2021 Dividend yield 0.0% 0.0% 0.0% 0.0% Risk-free interest rate 0.1% 0.0% 0.8% 0.1% Volatility 80.9% 68.7% 70.3% 69.5% Expected life Six Months Six Months Six Months Six Months

Restricted Stock Awards (Tables

Restricted Stock Awards (Tables)	9 Months Ended
	Jun. 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 June 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 337,616 $ 30.13 Awards vested (165,825 ) $ 17.26 Awards forfeited (6,175 ) $ 19.82 Non-vested balance as of June 30, 2021 1,068,247 $ 22.28

Net Income Per Share (Tables)

Net Income Per Share (Tables)	9 Months Ended
	Jun. 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: Three Months Ended Nine Months Ended June 30, June 30, 2020 2021 2020 2021 Weighted average common shares outstanding used in calculating basic income per share 21,499,408 22,132,915 21,491,117 22,100,190 Effect of dilutive options and non-vested restricted stock awards 546,492 904,764 474,238 822,336 Weighted average common and common equivalent shares used in calculating diluted income per share 22,045,900 23,037,679 21,965,355 22,922,526

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
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 three and nine months ended June 30, Three Months Ended Nine Months Ended June 30, June 30, (Amounts in thousands) 2020 2021 2020 2021 Revenue: Retail Operations $ 498,304 $ 656,826 $ 1,110,951 $ 1,591,445 Product Manufacturing - 20,417 - 20,417 Elimination of intersegment revenue - (10,915 ) - (10,915 ) Revenue $ 498,304 $ 666,328 $ 1,110,951 $ 1,600,947 Income from operations: Retail Operations $ 48,615 $ 79,988 $ 73,963 $ 164,841 Product Manufacturing - 3,521 - 3,521 Elimination of intersegment income from operations - (2,601 ) - (2,601 ) Income from operations $ 48,615 $ 80,908 $ 73,963 $ 165,761

Company Background - Additional

Company Background - Additional Information (Detail)	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2021StoreState
Concentration Risk [Line Items]
Number of retail locations | Store				77
Number of states wherein retail locations are established | State				21
Product Concentration Risk [Member] | Brunswick [Member] | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	33.00%
Product Concentration Risk [Member] | Brunswick Sea Ray Boat [Member] | Brunswick [Member] | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	15.00%
Product Concentration Risk [Member] | Brunswick Boston Whaler Boats [Member] | Brunswick [Member] | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	16.00%
Product Concentration Risk [Member] | Azimut Benetti Groups and Yachts | Sales [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	9.00%
Geographic Concentration Risk [Member] | Sales [Member] | Florida [Member]
Concentration Risk [Line Items]
Revenue percentage from sale of boats	54.00%	54.00%	51.00%

Basis of Presentation - Additio

Basis of Presentation - Additional Information (Detail)	9 Months Ended
	Jun. 30, 2021SegmentDealerOperationsManufacturer
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of reportable segments | Segment	2
Recreational boat dealers | Dealer	30
Boat brokerage operations	4
Full-service yacht repair operations	2
Manufacturer | Manufacturer	1

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2021	Sep. 30, 2020
Revenue From Contract With Customer [Abstract]
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 assets recorded in prepaid expenses and other current assets	$ 6.8	$ 2.6

Revenue Recognition - Summary o

Revenue Recognition - Summary of Percentage on Timing of Revenue Recognition (Details)	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	100.00%	100.00%	100.00%	100.00%
Product Manufacturing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	100.00%		100.00%
Goods and Services Transferred at a Point in Time [Member] | Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	92.40%	94.10%	92.20%	92.60%
Goods and Services Transferred at a Point in Time [Member] | Product Manufacturing [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	100.00%		100.00%
Goods and Services Transferred Over Time [Member] | Retail Operations [Member]
Disaggregation Of Revenue [Line Items]
Total revenue	7.60%	5.90%	7.80%	7.40%

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Weighted average remaining lease term (years)	13 years		13 years
Operating lease expense	$ 6	$ 3.6	$ 18.3	$ 10.3
Operating lease renewal term	25 years		25 years
Weighted average discount rate	5.70%		5.70%

Leases - Summary of Maturities

Leases - Summary of Maturities of Lease Liabilities by Fiscal Year (Details) $ in Thousands	Jun. 30, 2021USD ($)
Operating Leases
2021	$ 4,110
2022	15,373
2023	14,116
2024	11,960
2025	9,966
Thereafter	97,233
Total lease payments	152,758
Less: interest	(45,653)
Present value of lease liabilities	$ 107,105

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Thousands	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 12,911	$ 7,560
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	$ 71,838	$ 1,670

Inventories - Additional Inform

Inventories - Additional Information (Detail) - USD ($) $ in Millions	Jun. 30, 2021	Sep. 30, 2020
Inventory Disclosure [Abstract]
Inventories valuation allowance	$ 0.6	$ 2.4

Inventories - Summary of Invent

Inventories - Summary of Inventories (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Sep. 30, 2020
Inventory [Line Items]
Inventories, net	$ 209,418	$ 298,002
Work-in-process	10,108
Raw materials	9,729
New and Used Boats, Motors, and Trailers [Member]
Inventory [Line Items]
Inventories, net	177,743	289,291
Parts, Accessories, and Other [Member]
Inventory [Line Items]
Inventories, net	$ 11,838	$ 8,711

Impairment of Long-Lived Asse_2

Impairment of Long-Lived Assets - Additional Information (Detail)	9 Months Ended
	Jun. 30, 2021USD ($)
Asset Impairment Charges [Abstract]
Impairment charges	$ 0

Goodwill - Additional Informati

Goodwill - Additional Information (Detail) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	May 31, 2021USD ($)	Oct. 31, 2020USD ($)	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)Segment	Jun. 30, 2020USD ($)	Sep. 30, 2020USD ($)
Schedule Of Goodwill And Other Assets [Line Items]
Accounts receivable, net			$ 60,195		$ 60,195		$ 40,195
Inventories, net			209,418		209,418		298,002
Short-term borrowings			2,861		2,861		144,393
Accrued expenses			89,696		89,696		52,123
Accounts payable			28,741		28,741		37,343
Customer deposits			86,704		86,704		31,821
Goodwill			181,017		181,017		84,240
Revenue			666,328	$ 498,304	1,600,947	$ 1,110,951
Estimated income before taxes			80,269	$ 46,482	162,762	$ 65,473
Goodwill and other intangible assets, net			$ 186,691		$ 186,691		$ 84,293
Number of reportable segments | Segment					2
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					$ 230,100
Estimated income before taxes					$ 25,300

Goodwill - Summary of Estimated

Goodwill - 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	Jun. 30, 2021	Sep. 30, 2020
Recognized amounts of identifiable assets acquired and liabilities assumed:
Goodwill			$ 181,017	$ 84,240
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 arrangement		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 - Summary of Estimat_2

Goodwill - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed at Acquisition Date (Parenthetical) (Detail) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Oct. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	May 31, 2021
Business Acquisition [Line Items]
Cash purchase price and net working capital adjustments, net of cash acquired		$ 111,709	$ 1,400
Cruisers Yachts [Member]
Business Acquisition [Line Items]
Current assets, net of cash acquired				$ 5,933
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 - Summary of Changes i

Goodwill - Summary of Changes in Carrying Amount of Goodwill by Reportable Segment (Detail) $ in Thousands	9 Months Ended
	Jun. 30, 2021USD ($)
Goodwill [Line Items]
Balance as of September 30, 2020	$ 84,240
Goodwill acquired	96,497
Foreign currency translation	280
Balance as of June 30, 2021	181,017
Retail Operations [Member]
Goodwill [Line Items]
Balance as of September 30, 2020	84,240
Goodwill acquired	56,363
Foreign currency translation	280
Balance as of June 30, 2021	140,883
Product Manufacturing [Member]
Goodwill [Line Items]
Goodwill acquired	40,134
Balance as of June 30, 2021	$ 40,134

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income tax provision	$ 20,651	$ 11,555	$ 40,609	$ 16,422
Effective income tax rate	25.70%	24.90%	24.90%	25.10%

Short-Term Borrowings and Lon_3

Short-Term Borrowings and Long-Term Debt - Additional Information (Detail) - USD ($)	9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	May 31, 2020
Line Of Credit Facility [Line Items]
Additional borrowings	$ 102,900,000
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	$ 2,900,000
Interest rate on short-term borrowings	4.20%	3.90%
Credit Facility [Member]
Line Of Credit Facility [Line Items]
Additional extension for two one-year periods	May 31, 2023
Line of credit facility, term	3 years
Line of Credit Facility, Description	Company amended its Credit Facility to increase the borrowing availability to $500 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.
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			$ 440,000,000
Line of Credit Facility, Description	The Credit Facility has a three-year term and expires in May 2023, 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	Jun. 30, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Less current portion	$ (3,293)
Less unamortized portion of debt issuance costs	(617)
Long-term debt	48,374	$ 7,343
Mortgage Facility [Member]
Debt Instrument [Line Items]
Long-term debt	52,284
Mortgage Facility [Member] | Mortgage Facility Payable to Flagship Bank [Member]
Debt Instrument [Line Items]
Long-term debt	7,025
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	$ 27,584

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	9 Months Ended
	Jun. 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	Sep. 30, 2027
Current available borrowings	$ 26.1
Revolving mortgage facility with FineMark National Bank & Trust [Member] | Interest Rate Base [Member]
Debt Instrument [Line Items]
Debt instrument description of variable rate basis	base 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%

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
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	$ 900	$ 600	$ 2,619	$ 1,618
Selling, General, and Administrative Expenses [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-based compensation expense, approximately	$ 2,500	$ 2,200	$ 6,900	$ 5,500

The Incentive Stock Plans - Add

The Incentive Stock Plans - Additional Information (Detail) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Feb. 29, 2020	Jun. 30, 2021	Jun. 30, 2020	Jan. 31, 2011
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options granted		0	0
Total intrinsic value of options exercised		$ 1.8	$ 0.4
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 Option Activity (Detail) - Stock Options [Member] $ / shares in Units, $ in Thousands	9 Months Ended	12 Months Ended
	Jun. 30, 2021USD ($)$ / sharesshares	Sep. 30, 2020USD ($)$ / sharesshares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares Available for Grant, Beginning Balance	1,275,415
Options cancelled/forfeited/expired, Shares Available for Grant	10,000
Restricted stock awards issued, Shares Available for Grant	(337,616)
Restricted stock awards forfeited, Shares Available for Grant	6,175
Additional shares of stock issued, Shares Available for Grant	(4,287)
Shares Available for Grant, Ending Balance	949,687	1,275,415
Options Outstanding, Beginning Balance	196,329
Options cancelled/forfeited/expired, Options Outstanding	(10,000)
Options exercised, Options Outstanding	(75,579)
Options Outstanding, Ending Balance	110,750	196,329
Exercisable as of June 30, 2021, Options Outstanding	110,750
Aggregate Intrinsic Value | $	$ 4,085	$ 2,636
Exercisable as of June 30 2021, Aggregate Intrinsic Value | $	$ 4,085
Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 12.12
Weighted Average Exercise Price, Ending Balance | $ / shares	11.49	$ 12.12
Exercisable as of June 30 2021, Weighted Average Exercise Price | $ / shares	$ 11.49
Weighted Average Remaining Contractual Life	1 year 10 months 24 days	2 years 6 months
Exercisable as of June 30, 2021, Weighted Average Remaining Contractual Life	1 year 10 months 24 days

Employee Stock Purchase Plan -

Employee Stock Purchase Plan - Additional Information (Detail) - USD ($)	1 Months Ended	9 Months Ended
	Feb. 28, 2019	Jun. 30, 2021	Sep. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares issued		28,464,364	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]	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Dividend yield	0.00%	0.00%	0.00%	0.00%
Risk-free interest rate	0.00%	0.10%	0.10%	0.80%
Volatility	68.70%	80.90%	69.50%	70.30%
Expected life	6 months	6 months	6 months	6 months

Restricted Stock Awards - Addit

Restricted Stock Awards - Additional Information (Detail) - Restricted Stock Awards [Member] $ in Millions	9 Months Ended
	Jun. 30, 2021USD ($)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Unrecognized compensation cost related to non-vested restricted stock awards	$ 12
Weighted average period unrecognized compensation costs related to non-vested restricted awards are expected to be recognized	2 years 2 months 12 days
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%
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]	9 Months Ended
	Jun. 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	337,616
Shares/ Units, Awards vested | shares	(165,825)
Shares/ Units, Awards forfeited | shares	(6,175)
Shares/ Units, Non-vested ending balance | shares	1,068,247
Weighted Average Grant Date Fair Value, Non-vested beginning balance | $ / shares	$ 18.08
Weighted Average Grant Date Fair Value, Awards granted | $ / shares	30.13
Weighted Average Grant Date Fair Value, Awards vested | $ / shares	17.26
Weighted Average Grant Date Fair Value, Awards forfeited | $ / shares	19.82
Weighted Average Grant Date Fair Value, Non-vested ending balance | $ / shares	$ 22.28

Net Income Per Share - Basic an

Net Income Per Share - Basic and Diluted Net Income Per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Weighted average common shares outstanding used in calculating basic income per share	22,132,915	21,499,408	22,100,190	21,491,117
Effect of dilutive options and non-vested restricted stock awards	904,764	546,492	822,336	474,238
Weighted average common and common equivalent shares used in calculating diluted income per share	23,037,679	22,045,900	22,922,526	21,965,355

Net Income Per Share - Addition

Net Income Per Share - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Stock Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from earnings per share calculation	0	15,000	578	29,601

Segment Information - Additiona

Segment Information - Additional Information (Detail)	9 Months Ended
	Jun. 30, 2021StoreSegmentft
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Number of retail locations | Store	77
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 Revenue and Income from Operations of Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue:
Revenue	$ 666,328	$ 498,304	$ 1,600,947	$ 1,110,951
Income from operations:
Income from operations	80,908	48,615	165,761	73,963
Operating Segments [Member] | Retail Operations [Member]
Revenue:
Revenue	656,826	498,304	1,591,445	1,110,951
Income from operations:
Income from operations	79,988	$ 48,615	164,841	$ 73,963
Operating Segments [Member] | Product Manufacturing [Member]
Revenue:
Revenue	20,417		20,417
Income from operations:
Income from operations	3,521		3,521
Elimination of Intersegment [Member]
Revenue:
Revenue	(10,915)		(10,915)
Income from operations:
Income from operations	$ (2,601)		$ (2,601)

Subsequent Event - Additional I

Subsequent Event - Additional Information (Detail) - Credit Facility [Member] - USD ($)	Jul. 09, 2021	Jun. 30, 2021
Subsequent Event [Line Items]
Line of Credit Facility, Description		Company amended its Credit Facility to increase the borrowing availability to $500 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		May 31, 2023
Line of credit facility, term		3 years
Subsequent Event [Member]
Subsequent Event [Line Items]
Amount of borrowing availability	$ 500,000,000
Additional extension for two one-year periods	Jul. 31, 2024
Line of credit facility, term	1 year