Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 39,058us-gaap_NetIncomeLoss	$ 23,849us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	5,281	3,710
Excess income tax benefit from equity-based compensation	(7,998)	(5,696)
Equity-based compensation expense	13,399us-gaap_ShareBasedCompensation	10,703us-gaap_ShareBasedCompensation
Contract land deposit impairments (recoveries)	33	(1,983)
Gain on sale of loans	(11,238)us-gaap_GainLossOnSaleOfMortgageLoans	(7,995)us-gaap_GainLossOnSaleOfMortgageLoans
Mortgage loans closed	(545,325)	(416,801)
Mortgage loans sold and principal payments on mortgage loans held for sale	606,932	514,158
Distribution of earnings from unconsolidated joint ventures	5,846	3,704
Net change in assets and liabilities:
Increase in inventory	(84,212)us-gaap_IncreaseDecreaseInInventories	(102,729)us-gaap_IncreaseDecreaseInInventories
Increase in contract land deposits	(478)	(7,336)
Decrease (increase) in receivables	223us-gaap_IncreaseDecreaseInReceivables	(281)us-gaap_IncreaseDecreaseInReceivables
Decrease in accounts payable and accrued expenses	(31,982)	(37,225)
Increase in customer deposits	19,210	18,079
Other, net	(10,352)	(9,943)
Net cash used in operating activities	(1,603)	(15,786)
Cash flows from investing activities:
Investments in and advances to unconsolidated joint ventures	(863)
Distribution of capital from unconsolidated joint ventures	6,154	5,296
Purchase of property, plant and equipment	(4,893)	(5,433)
Proceeds from the sale of property, plant and equipment	138	142
Net cash provided by investing activities	536	5
Cash flows from financing activities:
Purchase of treasury stock	(63,099)	(32,578)
Repayments under non-recourse debt related to consolidated variable interest entity and note payable	(64)	(1,327)
Distributions to partner in consolidated variable interest entity	(300)us-gaap_PaymentsToMinorityShareholders
Excess income tax benefit from equity-based compensation	7,998	5,696
Proceeds from the exercise of stock options	43,626	57,060
Net cash (used in) provided by financing activities	(11,839)	28,851
Net (decrease) increase in cash and cash equivalents	(12,906)	13,070
Cash and cash equivalents, beginning of the period	545,419	866,253
Cash and cash equivalents, end of the period	532,513	879,323
Supplemental disclosures of cash flow information:
Interest paid during the period, net of interest capitalized	12,039us-gaap_InterestPaidNet	12,027us-gaap_InterestPaidNet
Income taxes paid during the period, net of refunds	$ 14,458us-gaap_IncomeTaxesPaidNet	$ 28,661us-gaap_IncomeTaxesPaidNet

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The gains (losses) included in earnings that represent the difference between the sale price and the carrying value of loans made to finance real estate acquisitions. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration