v3.26.1
Segment Information - Reportable Segment Financial Information (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
segment
Jun. 30, 2025
USD ($)
Segment Reporting [Line Items]        
Total revenues $ 530,711 $ 552,864 $ 1,353,565 $ 1,412,199
Total cost of sales 403,230 424,201 1,031,161 1,089,071
Selling, general and administrative expenses 87,243 92,138 254,254 258,989
Interest expense – floor plan 6,763 7,340 $ 20,530 21,870
Number of reportable segments | segment     2  
Interest expense – other (7,070) (9,041) $ (23,051) (27,129)
Restructuring and impairment (304) (727) (14,330) (3,013)
Change in fair value of contingent consideration 0 (144) (203) (452)
Equity-based compensation (4,006) (2,459) (8,947) (6,717)
Transaction costs (210) (175) (2,846) (1,111)
Depreciation and amortization (4,352) (6,301) (13,795) (18,509)
Other expense, net 150 224 (1,031) (853)
Income tax expense 10,293 3,507 2,439 (1,903)
Net loss before income tax benefit 21,966 14,222 (6,500) (5,175)
Operating Segments        
Segment Reporting [Line Items]        
Segment income 37,758 32,845 57,703 52,609
Dealership        
Segment Reporting [Line Items]        
Total revenues 501,372 512,761 1,261,061 1,306,676
Total cost of sales 382,998 398,331 966,519 1,017,992
Selling, general and administrative expenses 75,427 76,454 217,988 216,208
Segment income 36,184 30,636 56,024 50,606
Interest expense – floor plan 6,763 7,340 20,530 21,870
Interest expense – other (7,070) (9,041) (23,051) (27,129)
Net loss before income tax benefit 36,184 30,636    
Distribution        
Segment Reporting [Line Items]        
Selling, general and administrative expenses 7,810 13,225 27,319 36,064
Segment income 1,574 2,209 1,679 2,003
Interest expense – other 0 0 0 0
New boat        
Segment Reporting [Line Items]        
Total revenues 319,960 326,134 825,267 883,631
Total cost of sales 262,826 274,184 681,366 744,522
New boat | Dealership        
Segment Reporting [Line Items]        
Total revenues 319,960 326,134 825,267 883,631
Total cost of sales 262,826 273,691 681,366 742,982
Pre-owned boat        
Segment Reporting [Line Items]        
Total revenues 121,058 125,941 285,840 272,467
Total cost of sales 96,559 103,406 229,022 222,865
Pre-owned boat | Dealership        
Segment Reporting [Line Items]        
Total revenues 121,058 125,941 285,840 272,467
Total cost of sales 96,559 103,406 229,022 222,865
Finance & insurance income        
Segment Reporting [Line Items]        
Total revenues 17,293 17,782 40,206 42,185
Finance & insurance income | Dealership        
Segment Reporting [Line Items]        
Total revenues 17,293 17,782 40,206 42,185
Service, parts & other        
Segment Reporting [Line Items]        
Total revenues 72,400 83,007 202,252 213,916
Total cost of sales 43,845 46,611 120,773 121,684
Service, parts & other | Dealership        
Segment Reporting [Line Items]        
Total revenues 43,061 42,904 109,748 108,393
Total cost of sales 23,613 21,234 56,131 52,145
Service, parts & other | Distribution        
Segment Reporting [Line Items]        
Total revenues 29,339 40,103 92,504 105,523
Total cost of sales $ 19,955 $ 24,669 $ 63,506 $ 67,456