Condensed Consolidated Statements of Cash Flows - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net income	$ 172,200,000	$ 86,044,000
Depreciation, Depletion and Amortization	1,125,000	1,394,000
Gain (Loss) on Disposition of Property Plant Equipment	39,000	12,000
Adjustments to reconcile net income to net cash provided (used in) by operating activities:
Share-based compensation expense	3,117,000	2,756,000
Earnest Money Deposits and Pre-acquisition Costs Written-Off	174,000	43,000
Income (Loss) from Equity Method Investments	(14,210,000)	(8,484,000)
Distributions of income from unconsolidated entities	6,876,000	4,593,000
Changes in operating assets and liabilities:
Decrease (increase) in receivables	43,000	(1,783,000)
Increase in inventory	(164,784,000)	(261,156,000)
Decrease in earnest money deposits	1,306,000	2,078,000
Decrease (increase) in other assets	1,613,000	(7,649,000)
Increase in accounts payable	(14,547,000)	(21,240,000)
Payment for Contingent Consideration Liability, Operating Activities	0	(368,000)
Increase in accrued expenses	34,360,000	17,009,000
Increase (Decrease) in Contract with Customer, Liability	(6,986,000)	25,568,000
Net cash provided by (used in) operating activities	49,420,000	(118,703,000)
Cash flows from investing activities:
Purchase of property and equipment	(1,072,000)	(1,479,000)
Net cash used in investing activities	(2,199,000)	(1,487,000)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Borrowings from lines of credit	222,000,000	342,000,000
Repayments of Lines of Credit	187,000,000	318,000,000
Payment, Tax Withholding, Share-based Payment Arrangement	1,075,000	834,000
Payments for Repurchase of Common Stock	(92,312,000)	0
Payments of Dividends	(1,374,000)	0
Payments to Noncontrolling Interests	5,718,000	1,606,000
Net cash (used in) provided by financing activities	(51,121,000)	143,670,000
Net (decrease) increase in cash and cash equivalents and restricted cash	(3,900,000)	23,480,000
Cash and cash equivalents, beginning of period		19,479,000
Restricted cash, beginning of period	16,388,000	14,156,000
Cash and cash equivalents and restricted cash, beginning of period	93,554,000	33,635,000
Cash and cash equivalents, end of period		33,517,000
Restricted cash, end of period	22,889,000	23,598,000
Cash and cash equivalents and restricted cash, end of period	89,654,000	57,115,000
Supplemental Cash Flow Information [Abstract]
Interest Paid, Excluding Capitalized Interest, Operating Activities	0	0
Income Taxes Paid, Net	39,249,000	32,463,000
Earnest Money Deposits and Pre-acquisition Costs Written-Off	174,000	43,000
Proceeds from Notes Payable	14,472,000	127,000
Repayments of Notes Payable	(28,000)	(2,018,000)
Payments of Debt Issuance Costs	(86,000)	(893,000)
Payments for Repurchase of Redeemable Noncontrolling Interest	0	(106,000)
Payments to Acquire Equity Method Investments	(1,127,000)	(8,000)
Proceeds from Issuance of Senior Long-term Debt	$ 0	$ 125,000,000