Supplemental Guarantor Information (Supplemental Condensed Consolidated Balance Sheet) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Assets
Cash and cash equivalents	$ 336,786	$ 29,450	$ 10,684	$ 29,287
Cash held in escrow	25,980	20,044
Accounts receivable	8,209	5,729
Inventories	926,992	857,885
Mortgage loans held for sale	11,235
Prepaid expenses and other assets	42,220	40,457
Property and equipment, net	12,141	11,412
Investment in unconsolidated subsidiaries	18,356	18,275
Amortizable intangible assets, net	2,222	2,911
Goodwill	21,365	21,365
Total Assets	1,405,506	1,007,528
Liabilities:
Accounts payable	4,324	15,708
Accrued expenses and other liabilities	91,832	62,314
Deferred tax liability	123	1,782
Senior and other notes payable	776,849	259,088
Revolving line of credit		195,000
Mortgage repurchase facility	10,551
Total liabilities	883,679	533,892
Stockholders' equity:	521,827	473,636
Total liabilities and stockholders' equity	1,405,506	1,007,528
CCS [Member]
Assets
Cash and cash equivalents	313,561	14,637	10,553	22,002
Accounts receivable		2,980
Investment in consolidated subsidiaries	973,571	884,665
Prepaid expenses and other assets	5,933	14,628
Property and equipment, net	1,712	1,166
Investment in unconsolidated subsidiaries	18,356	18,275
Total Assets	1,313,133	936,351
Liabilities:
Accounts payable	167	257
Accrued expenses and other liabilities	17,624	12,587
Deferred tax liability	123	1,782
Senior and other notes payable	773,392	253,089
Revolving line of credit		195,000
Total liabilities	791,306	462,715
Stockholders' equity:	521,827	473,636
Total liabilities and stockholders' equity	1,313,133	936,351
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	17,091	8,646	$ 131	$ 7,285
Cash held in escrow	25,704	20,044
Accounts receivable	8,054	2,749
Inventories	926,992	857,885
Prepaid expenses and other assets	35,985	25,662
Property and equipment, net	10,082	10,224
Amortizable intangible assets, net	2,222	2,911
Goodwill	21,365	21,365
Total Assets	1,047,495	949,486
Liabilities:
Accounts payable	4,029	15,575
Accrued expenses and other liabilities	74,017	49,697
Senior and other notes payable	3,457	5,999
Total liabilities	81,503	71,271
Stockholders' equity:	965,992	878,215
Total liabilities and stockholders' equity	1,047,495	949,486
Non Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	6,134	6,167
Cash held in escrow	276
Accounts receivable	155
Mortgage loans held for sale	11,235
Prepaid expenses and other assets	302	167
Property and equipment, net	347	22
Total Assets	18,449	6,356
Liabilities:
Accounts payable	128	(124)
Accrued expenses and other liabilities	191	30
Mortgage repurchase facility	10,551
Total liabilities	10,870	(94)
Stockholders' equity:	7,579	6,450
Total liabilities and stockholders' equity	18,449	6,356
Elimination Entries [Member]
Assets
Investment in consolidated subsidiaries	(973,571)	(884,665)
Total Assets	(973,571)	(884,665)
Liabilities:
Stockholders' equity:	(973,571)	(884,665)
Total liabilities and stockholders' equity	$ (973,571)	$ (884,665)