Supplemental Guarantor Information Supplemental Guarantor Information - Statements of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	$ (19,701)	$ (39,320)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	(4,615)	(1,872)
Acquisition	(100,960)	0
Intercompany Investing	0	0
Cash contributions to joint venture arrangements	(4,321)	(5,807)
Return of capital from Investment in joint venture arrangements	676	1,078
Net proceeds from sale of mortgage servicing rights	5,111	7,558
Net cash provided by (used in) investing activities	(104,109)	957
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayments of Senior Debt	(65,941)
Proceeds from bank borrowings - homebuilding operations	353,900	289,400
Principal repayments of bank borrowings - homebuilding operations	(172,100)	(191,700)
Net repayment of bank borrowings - financial services operations	(75,032)	(63,377)
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	(1,214)	(2,752)
Proceeds from exercise of stock options	426	4,792
Intercompany Financing	0	0
Dividends paid	0	(2,438)
Debt issue costs	(115)	(63)
Net Cash Provided by (Used in) Financing Activities	39,924	33,862
Net increase (decrease) in cash and cash equivalents	(83,886)	(4,501)
Cash and cash equivalents balance at beginning of period	151,703	34,441
Cash and cash equivalents balance at end of period	67,817	29,940
Consolidation, Eliminations [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	(5,750)	(5,500)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	0	0
Acquisition	0
Intercompany Investing	6,176	7,854
Cash contributions to joint venture arrangements	0	0
Return of capital from Investment in joint venture arrangements	0	0
Net proceeds from sale of mortgage servicing rights	0	0
Net cash provided by (used in) investing activities	6,176	7,854
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayments of Senior Debt	0
Proceeds from bank borrowings - homebuilding operations	0	0
Principal repayments of bank borrowings - homebuilding operations	0	0
Net repayment of bank borrowings - financial services operations	0	0
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	0	0
Proceeds from exercise of stock options	0	0
Intercompany Financing	(6,176)	(7,854)
Dividends paid	5,750	5,500
Debt issue costs	0	0
Net Cash Provided by (Used in) Financing Activities	(426)	(2,354)
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents balance at beginning of period	0	0
Cash and cash equivalents balance at end of period	0	0
Parent Company [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	5,750	5,500
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	0	0
Acquisition	0
Intercompany Investing	(6,176)	(7,854)
Cash contributions to joint venture arrangements	0	0
Return of capital from Investment in joint venture arrangements	0	0
Net proceeds from sale of mortgage servicing rights	0	0
Net cash provided by (used in) investing activities	(6,176)	(7,854)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayments of Senior Debt	0
Proceeds from bank borrowings - homebuilding operations	0	0
Principal repayments of bank borrowings - homebuilding operations	0	0
Net repayment of bank borrowings - financial services operations	0	0
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	0	0
Proceeds from exercise of stock options	426	4,792
Intercompany Financing	0	0
Dividends paid	0	(2,438)
Debt issue costs	0	0
Net Cash Provided by (Used in) Financing Activities	426	2,354
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents balance at beginning of period	0	0
Cash and cash equivalents balance at end of period	0	0
Guarantor Subsidiaries [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	(95,387)	(120,894)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	(4,449)	(1,785)
Acquisition	(100,960)
Intercompany Investing	0	0
Cash contributions to joint venture arrangements	(3,485)	(2,128)
Return of capital from Investment in joint venture arrangements	0	0
Net proceeds from sale of mortgage servicing rights	0
Net cash provided by (used in) investing activities	(108,894)	(3,913)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayments of Senior Debt	(65,941)
Proceeds from bank borrowings - homebuilding operations	353,900	289,400
Principal repayments of bank borrowings - homebuilding operations	(172,100)	(191,700)
Net repayment of bank borrowings - financial services operations	0	0
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	(1,214)	(2,752)
Proceeds from exercise of stock options	0	0
Intercompany Financing	8,862	15,027
Dividends paid	0	0
Debt issue costs	(75)	0
Net Cash Provided by (Used in) Financing Activities	123,432	109,975
Net increase (decrease) in cash and cash equivalents	(80,849)	(14,832)
Cash and cash equivalents balance at beginning of period	131,522	20,927
Cash and cash equivalents balance at end of period	50,673	6,095
Non-Guarantor Subsidiaries [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	75,686	81,574
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	(166)	(87)
Acquisition	0
Intercompany Investing	0	0
Cash contributions to joint venture arrangements	(836)	(3,679)
Return of capital from Investment in joint venture arrangements	676	1,078
Net proceeds from sale of mortgage servicing rights	5,111	7,558
Net cash provided by (used in) investing activities	4,785	4,870
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayments of Senior Debt	0
Proceeds from bank borrowings - homebuilding operations	0	0
Principal repayments of bank borrowings - homebuilding operations	0	0
Net repayment of bank borrowings - financial services operations	(75,032)	(63,377)
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	0	0
Proceeds from exercise of stock options	0	0
Intercompany Financing	(2,686)	(7,173)
Dividends paid	(5,750)	(5,500)
Debt issue costs	(40)	(63)
Net Cash Provided by (Used in) Financing Activities	(83,508)	(76,113)
Net increase (decrease) in cash and cash equivalents	(3,037)	10,331
Cash and cash equivalents balance at beginning of period	20,181	13,514
Cash and cash equivalents balance at end of period	$ 17,144	$ 23,845

The cash outflow from the parent as a source of financing.

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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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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow from bank borrowing during the year.

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Amount of cash inflow (outflow) for debt classified as other.

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