Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 565,039	$ 412,902
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	15,053	17,087
Equity-based compensation expense	51,690	32,678
Contract land deposit and other impairments, net	9,311	3,396
Gain on sale of loans, net	(92,609)	(73,372)
Mortgage loans closed	(3,472,345)	(2,860,903)
Mortgage loans sold and principal payments on mortgage loans held for sale	3,588,082	3,033,239
Distribution of earnings from unconsolidated joint ventures	3,863	3,536
Net change in assets and liabilities:
Increase in inventory	(174,871)	(284,459)
(Increase) decrease in contract land deposits	(6,587)	11,306
(Increase) decrease in receivables	(7,028)	36
Increase in accounts payable and accrued expenses	1,201	15,109
Increase in customer deposits	17,643	40,049
Other, net	(6,627)	(14,958)
Net cash provided by operating activities	491,815	335,646
Cash flows from investing activities:
Investments in and advances to unconsolidated joint ventures	(284)	(455)
Distribution of capital from unconsolidated joint ventures	7,873	7,665
Purchase of property, plant and equipment	(14,818)	(15,670)
Proceeds from the sale of property, plant and equipment	742	664
Net cash used in investing activities	(6,487)	(7,796)
Cash flows from financing activities:
Purchase of treasury stock	(657,369)	(230,199)
Payments to Noncontrolling Interests	234	0
Proceeds from the exercise of stock options	115,268	130,245
Net cash used in financing activities	(542,335)	(99,954)
Net (decrease) increase in cash, restricted cash, and cash equivalents	(57,007)	227,896
Cash, restricted cash, and cash equivalents, beginning of the period	689,557	416,037
Cash, restricted cash, and cash equivalents, end of the period	632,550	643,933
Supplemental disclosures of cash flow information:
Interest paid during the period, net of interest capitalized	24,066	23,112
Income taxes paid during the period, net of refunds	$ 125,762	$ 169,949

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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