Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities
Net income	$ 70,261	$ 33,100
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	8,803	5,073
Stock-based compensation expense	10,135	6,521
Deferred income taxes	(804)	(2,766)
Distribution of income from unconsolidated subsidiaries	7,432	5,246
Equity in income of unconsolidated subsidiaries	(14,849)	(7,648)
(Gain) loss on disposition of assets	1,399	202
Changes in assets and liabilities:
Cash held in escrow	6,077	(22,218)
Accounts receivable	(13,324)	(7,493)
Inventories	(243,355)	(95,065)
Prepaid expenses and other assets	(32,640)	(11,291)
Accounts payable	3,267	(8,026)
Accrued expenses and other liabilities	(9,285)	9,027
Mortgage loans held for sale	(10,114)	(30,071)
Net cash used in operating activities	(216,997)	(125,409)
Investing activities
Purchases of property and equipment	(11,893)	(5,867)
Business combinations, net of acquired cash	(28,036)	(77,457)
Proceeds from sale of South Carolina operations		17,074
Other investing activities	272	128
Net cash used in investing activities	(39,657)	(66,122)
Financing activities
Borrowings under revolving credit facilities	520,000	75,000
Payments on revolving credit facilities	(284,000)	(270,000)
Proceeds from issuance of senior notes		523,000
Proceeds from insurance notes payable	11,838
Extinguishments of debt assumed in business combination	(94,231)	(151,919)
Principal payments on notes payable	(2,173)	(4,735)
Debt issuance costs	(3,521)	(3,731)
Net proceeds from mortgage repurchase facilities	9,008	27,465
Net proceeds from issuances of common stock	31,230	35,010
Repurchases of common stock upon vesting of stock based compensation	(5,483)	(4,141)
Net cash provided by (used in) financing activities	182,668	225,949
Net increase (decrease)	(73,986)	34,418
Cash and cash equivalents and Restricted cash, Beginning of period	93,713	30,954
Cash and cash equivalents and Restricted cash, End of period	19,727	65,372
Supplemental cash flow disclosure
Cash paid for income taxes	39,326	21,657
Cash and cash equivalents and Restricted cash
Cash and cash equivalents	15,927	58,522
Restricted cash (Note 6)	3,800	6,850
Cash and cash equivalents and Restricted cash, End of period	$ 19,727	$ 65,372