REPORTING SEGMENTS - Reconciliation to Net Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue	$ 1,995,023	$ 1,719,280	$ 3,698,147	$ 3,137,092
Gross margin	541,480	328,703	934,608	603,144
Selling, general and administrative expenses	(165,542)	(167,557)	(322,807)	(315,062)
Net (loss)/income from unconsolidated entities	(3,637)	2,126	(1,806)	7,787
Interest and other income/(expense), net	5,825	(48)	1,031	(904)
Gain on extinguishment of debt, net	13,471	0	13,471	0
Income before income taxes	391,597	163,224	624,497	294,965
Operating Segments | East
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue	635,862	581,362	1,160,983	1,034,723
Gross margin	174,535	122,241	300,226	207,308
Selling, general and administrative expenses	(44,589)	(46,365)	(84,915)	(84,964)
Net (loss)/income from unconsolidated entities	0	0	0	0
Interest and other income/(expense), net	10,110	49	9,678	91
Gain on extinguishment of debt, net	0		0
Income before income taxes	140,056	75,925	224,989	122,435
Operating Segments | Central
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue	457,512	385,839	828,247	708,452
Gross margin	117,356	68,606	191,364	133,784
Selling, general and administrative expenses	(33,499)	(32,342)	(62,939)	(60,900)
Net (loss)/income from unconsolidated entities	(39)	(6)	46	(70)
Interest and other income/(expense), net	(1,076)	(518)	(2,936)	(891)
Gain on extinguishment of debt, net	0		0
Income before income taxes	82,742	35,740	125,535	71,923
Operating Segments | West
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue	832,274	714,439	1,602,484	1,312,169
Gross margin	222,687	126,593	404,218	231,031
Selling, general and administrative expenses	(42,374)	(47,203)	(85,893)	(88,755)
Net (loss)/income from unconsolidated entities	(5,793)	4	(6,105)	1,996
Interest and other income/(expense), net	(3,703)	(1,311)	(5,669)	(1,420)
Gain on extinguishment of debt, net	0		0
Income before income taxes	170,817	78,083	306,551	142,852
Operating Segments | Financial Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue	35,471	37,392	70,670	81,457
Gross margin	13,988	11,457	24,973	31,523
Selling, general and administrative expenses	0	0	0	0
Net (loss)/income from unconsolidated entities	2,195	2,128	4,253	5,871
Interest and other income/(expense), net	0	0	0	0
Gain on extinguishment of debt, net	0		0
Income before income taxes	16,183	13,585	29,226	37,394
Corporate and Unallocated
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue	33,904	248	35,763	291
Gross margin	12,914	(194)	13,827	(502)
Selling, general and administrative expenses	(45,080)	(41,647)	(89,060)	(80,443)
Net (loss)/income from unconsolidated entities	0	0	0	(10)
Interest and other income/(expense), net	494	1,732	(42)	1,316
Gain on extinguishment of debt, net	13,471		13,471
Income before income taxes	$ (18,201)	$ (40,109)	$ (61,804)	$ (79,639)