Fair Value Measurements Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
ASSETS:
Cash, cash equivalents and restricted cash	$ 29,940	$ 34,441
Carrying (Reported) Amount, Fair Value Disclosure [Member]
ASSETS:
Cash, cash equivalents and restricted cash	29,940	34,441
Mortgage loans held for sale	91,986	154,020
Split dollar life insurance policies	212	214
Notes receivable	162	763
Commitments to extend real estate loans (assets)	344	250
Forward sales of mortgage-backed securities	599	230
LIABILITIES:
Notes Payable - Homebuilding Fair Value Disclosure	138,000	40,300
Notes Payable - Financial Services Fair Value Disclosure	89,518	152,895
Notes payable - other	3,663	6,415
Convertible senior subordinated notes due 2017 - Fair Value Disclosure	57,500	57,500
Convertible senior subordinated notes due 2018 - Fair Value Disclosure	86,250	86,250
Senior notes due 2021	300,000	300,000
Best efforts contracts for committed IRLCs and mortgage loans held for sale	19	90
Forward sales of mortgage-backed securities	0	0
Off-Balance Sheet Letters of Credit	0	0
Estimate of Fair Value, Fair Value Disclosure [Member]
ASSETS:
Cash, cash equivalents and restricted cash	29,940	34,441
Mortgage loans held for sale	91,986	154,020
Split dollar life insurance policies	212	214
Notes receivable	146	687
Commitments to extend real estate loans (assets)	344	250
Forward sales of mortgage-backed securities	599	230
LIABILITIES:
Notes Payable - Homebuilding Fair Value Disclosure	138,000	40,300
Notes Payable - Financial Services Fair Value Disclosure	89,518	152,895
Notes payable - other	3,434	5,999
Convertible senior subordinated notes due 2017 - Fair Value Disclosure	69,791	65,957
Convertible senior subordinated notes due 2018 - Fair Value Disclosure	89,053	88,105
Senior notes due 2021	315,000	314,250
Best efforts contracts for committed IRLCs and mortgage loans held for sale	19	90
Forward sales of mortgage-backed securities	0	0
Off-Balance Sheet Letters of Credit	$ 924	$ 702