SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Detail)	12 Months Ended
	Dec. 31, 2024 USD ($) lot asset	Dec. 31, 2023 USD ($) lot	Dec. 31, 2022 USD ($)
Significant Accounting Policies [Line Items]
Real estate impairment charges	$ 29,637,000	$ 11,791,000	$ 24,870,000
Total controlled lots | lot	49,435	38,285
Purchase price	$ 1,200,000,000	$ 822,100,000
Asset, held-for-sale, not part of disposal group, current	89,700,000	0	0
Total real estate inventory	6,234,084,000	5,545,446,000
Impairment charges on unconsolidated entities	0	14,700,000	0
Depreciation expense	11,500,000	9,000,000.0	7,600,000
Impairment of goodwill	$ 0	0	0
Insurance coverage period	10 years
Warranty coverage period, workmanship or materials	1 year
Warranty coverage period, systems	2 years
Warranty coverage period, structural defects	10 years
Contribution made to consolidated defined contribution plan	$ 14,400,000	13,200,000	13,600,000
Advertising costs	33,800,000	28,700,000	33,900,000
Land under purchase options, recorded	$ 154,800,000	$ 129,200,000
Minimum
Significant Accounting Policies [Line Items]
Life cycle of communities (in years)	2 years
Derivative term	30 days
Maximum
Significant Accounting Policies [Line Items]
Life cycle of communities (in years)	5 years
Derivative term	60 days
Controlled Lots, Land Banking Arrangements
Significant Accounting Policies [Line Items]
Total controlled lots | lot	6,895	5,818
Operating Segments
Significant Accounting Policies [Line Items]
Impairment charges on unconsolidated entities		$ 5,300,000
Model and sales office improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	3 years
Buildings | Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	20 years
Buildings | Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	40 years
Building and Leasehold Improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Furniture, fixtures and computer equipment | Minimum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	5 years
Furniture, fixtures and computer equipment | Maximum
Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	7 years
Employer Matching Contribution Tranche One
Significant Accounting Policies [Line Items]
Defined contribution plan employee matching contribution	100.00%
Percentage of contribution based on participant's age and ranges	4.00%
Employer Matching Contribution Tranche Two
Significant Accounting Policies [Line Items]
Defined contribution plan employee matching contribution	50.00%
Percentage of contribution based on participant's age and ranges	4.00%	5.00%
West
Significant Accounting Policies [Line Items]
Asset, held-for-sale, not part of disposal group, number of assets | asset	1
West | Continuing Operations
Significant Accounting Policies [Line Items]
Real estate impairment charges	$ 5,000,000.0	$ 11,800,000	$ 24,900,000
West
Significant Accounting Policies [Line Items]
Real estate impairment charges	12,500,000
West | Operating Segments
Significant Accounting Policies [Line Items]
Land inventory held for sale impairments	$ 6,800,000