Supplemental Guarantor Information Supplemental Guarantor Information - Statements of Cash Flows (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	$ 82,826	$ 10,617
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	(1,976)	(1,599)
Return of capital from joint venture arrangements	363	150
Intercompany Investing	0	0
Investment in joint venture arrangements	(19,089)	(15,281)
Net cash provided by (used in) investing activities	(20,702)	(16,730)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayment of senior notes due 2021	(300,000)
Net proceeds from issuance of senior notes	400,000	0
Proceeds from bank borrowings - homebuilding operations	306,800	374,500
Principal repayments of bank borrowings - homebuilding operations	(372,800)	(317,600)
Net repayment of bank borrowings - financial services operations	(2,720)	(49,165)
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	1,213	(845)
Intercompany Financing	0	0
Payments for repurchase of common stock	(1,912)	(5,150)
Dividends paid	0	0
Debt issue costs	(8,410)	(40)
Proceeds from exercise of stock options	3,645	3,277
Net cash (used in) provided by financing activities	25,816	4,977
Net increase (decrease) in cash, cash equivalents and restricted cash	87,940	(1,136)
Cash, cash equivalents and restricted cash-Period Start	6,083	21,529
Cash, cash equivalents and restricted cash-Period End	94,023	20,393
Consolidation, Eliminations [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	(2,100)	(5,130)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	0	0
Return of capital from joint venture arrangements	0	0
Intercompany Investing	98,610	3,257
Investment in joint venture arrangements	0	0
Net cash provided by (used in) investing activities	98,610	3,257
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayment of senior notes due 2021	0
Net proceeds from issuance of senior notes	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
Intercompany Financing	(92,885)	(3,257)
Payments for repurchase of common stock	0	0
Dividends paid	2,100	5,130
Debt issue costs	0	0
Proceeds from exercise of stock options	0	0
Net cash (used in) provided by financing activities	(90,785)	1,873
Net increase (decrease) in cash, cash equivalents and restricted cash	5,725	0
Cash, cash equivalents and restricted cash-Period Start	(5,725)	0
Cash, cash equivalents and restricted cash-Period End	0	0
Parent Company [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	3,050	5,130
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	0	0
Return of capital from joint venture arrangements	0	0
Intercompany Investing	(98,610)	(3,257)
Investment in joint venture arrangements	0	0
Net cash provided by (used in) investing activities	(98,610)	(3,257)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayment of senior notes due 2021	(300,000)
Net proceeds from issuance of senior notes	400,000
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
Intercompany Financing	0	0
Payments for repurchase of common stock	(1,912)	(5,150)
Dividends paid	0	0
Debt issue costs	(6,173)	0
Proceeds from exercise of stock options	3,645	3,277
Net cash (used in) provided by financing activities	95,560	(1,873)
Net increase (decrease) in cash, cash equivalents and restricted cash	0	0
Cash, cash equivalents and restricted cash-Period Start	0	0
Cash, cash equivalents and restricted cash-Period End	0	0
Guarantor Subsidiaries [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	78,373	(41,562)
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	(1,662)	(1,411)
Return of capital from joint venture arrangements	0	0
Intercompany Investing	0	0
Investment in joint venture arrangements	(19,082)	(15,119)
Net cash provided by (used in) investing activities	(20,744)	(16,530)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayment of senior notes due 2021	0
Net proceeds from issuance of senior notes	0
Proceeds from bank borrowings - homebuilding operations	306,800	374,500
Principal repayments of bank borrowings - homebuilding operations	(372,800)	(317,600)
Net repayment of bank borrowings - financial services operations	0	0
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	1,213	(845)
Intercompany Financing	88,115	(44)
Payments for repurchase of common stock	0	0
Dividends paid	0	0
Debt issue costs	(2,197)	0
Proceeds from exercise of stock options	0	0
Net cash (used in) provided by financing activities	21,131	56,011
Net increase (decrease) in cash, cash equivalents and restricted cash	78,760	(2,081)
Cash, cash equivalents and restricted cash-Period Start	219	5,554
Cash, cash equivalents and restricted cash-Period End	78,979	3,473
Non-Guarantor Subsidiaries [Member]
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net cash (used in) provided by operating activities	3,503	52,179
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchase of property and equipment	(314)	(188)
Return of capital from joint venture arrangements	363	150
Intercompany Investing	0	0
Investment in joint venture arrangements	(7)	(162)
Net cash provided by (used in) investing activities	42	(200)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Repayment of senior notes due 2021	0
Net proceeds from issuance of senior notes	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	(2,720)	(49,165)
Proceeds from (principal repayments of) notes payable-other and CDD bond obligations	0	0
Intercompany Financing	4,770	3,301
Payments for repurchase of common stock	0	0
Dividends paid	(2,100)	(5,130)
Debt issue costs	(40)	(40)
Proceeds from exercise of stock options	0	0
Net cash (used in) provided by financing activities	(90)	(51,034)
Net increase (decrease) in cash, cash equivalents and restricted cash	3,455	945
Cash, cash equivalents and restricted cash-Period Start	11,589	15,975
Cash, cash equivalents and restricted cash-Period End	$ 15,044	$ 16,920

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

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including 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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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 to reacquire common stock during the period.

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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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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 distribution received from equity method investee for return of investment, classified as investing activities. Excludes distribution for return on investment, classified as operating activities.

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The cash inflow from a borrowing net of the cash outflow from repayment of a borrowing having initial term of repayment within three months.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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