Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (2,715)	$ 3,162	$ (10,810)	$ 21,286
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	(2,324)	4,243	(2,221)	(3,060)
Interest rate swap contract	(10)	(117)	(65)	(34)
Total other comprehensive (loss) income, net of tax	(2,334)	4,126	(2,286)	(3,094)
Comprehensive (loss) income	(5,049)	7,288	(13,096)	18,192
Comprehensive (loss) income attributable to non-controlling interests	(298)	188	(356)	(345)
Comprehensive (loss) income attributable to MarineMax, Inc.	$ (4,751)	$ 7,100	$ (12,740)	$ 18,537

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

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