v3.26.1
Segment Information - Schedule of Financial Information About Reportable Segments and Corporate and Unallocated (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Revenue $ 516,306 $ 545,367 $ 1,289,643 $ 1,579,659
Home construction and land sales expenses 447,863 462,448 1,131,631 1,338,136
Inventory impairments and abandonments 2,342 10,339 6,007 10,867
Commissions 17,156 18,615 42,562 53,511
Sales and marketing 20,394 16,863 58,264 47,903
Other general and administrative expenses 34,992 36,241 100,305 104,172
Depreciation and amortization 4,924 4,571 13,050 13,273
Operating income (loss) (11,365) (3,710) (62,176) 11,797
Loss on extinguishment of debt, net (668) 0 (668) 0
Other income, net 1,532 1,204 2,743 3,031
Income (loss) before income taxes (10,501) (2,506) (60,101) 14,828
Operating Segments        
Segment Reporting [Line Items]        
Revenue 516,306 545,367 1,289,643 1,579,659
Home construction and land sales expenses 432,410 446,805 1,091,401 1,298,132
Inventory impairments and abandonments 2,043 8,716 5,465 9,244
Commissions 17,156 18,615 42,562 53,511
Sales and marketing 15,363 12,963 44,025 37,421
Other general and administrative expenses 15,333 15,742 44,316 44,941
Depreciation and amortization 3,666 3,212 8,872 9,620
Operating income (loss) 30,335 39,314 53,002 126,790
Operating Segments | West        
Segment Reporting [Line Items]        
Revenue 287,324 329,149 747,684 1,001,921
Home construction and land sales expenses 242,113 269,198 636,002 814,996
Inventory impairments and abandonments 1,028 3,081 3,551 3,609
Commissions 9,919 11,489 25,966 34,596
Sales and marketing 9,106 7,796 26,665 22,936
Other general and administrative expenses 8,261 8,031 24,871 24,632
Depreciation and amortization 2,033 2,152 5,509 6,861
Operating income (loss) 14,864 27,402 25,120 94,291
Operating Segments | East        
Segment Reporting [Line Items]        
Revenue 121,533 149,160 312,117 379,898
Home construction and land sales expenses 104,043 122,495 266,615 318,595
Inventory impairments and abandonments 1,015 0 1,914 0
Commissions 3,223 4,630 8,342 11,823
Sales and marketing 3,275 2,865 9,647 8,267
Other general and administrative expenses 3,685 4,064 10,644 10,874
Depreciation and amortization 774 633 1,577 1,637
Operating income (loss) 5,518 14,473 13,378 28,702
Operating Segments | Southeast        
Segment Reporting [Line Items]        
Revenue 107,449 67,058 229,842 197,840
Home construction and land sales expenses 86,254 55,112 188,784 164,541
Inventory impairments and abandonments 0 5,635 0 5,635
Commissions 4,014 2,496 8,254 7,092
Sales and marketing 2,982 2,302 7,713 6,218
Other general and administrative expenses 3,387 3,647 8,801 9,435
Depreciation and amortization 859 427 1,786 1,122
Operating income (loss) 9,953 (2,561) 14,504 3,797
Corporate and unallocated        
Segment Reporting [Line Items]        
Revenue 0 0 0 0
Home construction and land sales expenses 15,453 15,643 40,230 40,004
Inventory impairments and abandonments 299 1,623 542 1,623
Commissions 0 0 0 0
Sales and marketing 5,031 3,900 14,239 10,482
Other general and administrative expenses 19,659 20,499 55,989 59,231
Depreciation and amortization 1,258 1,359 4,178 3,653
Operating income (loss) $ (41,700) $ (43,024) $ (115,178) $ (114,993)