Segment Information (Depreciation and Amortization) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Depreciation and amortization:
Depreciation and amortization	$ 53,999	$ 49,429	$ 50,998
Northeast [Member]
Depreciation and amortization:
Depreciation and amortization	1,962	2,093	2,392
Southeast [Member]
Depreciation and amortization:
Depreciation and amortization	4,448	5,231	5,117
Florida [Member]
Depreciation and amortization:
Depreciation and amortization	5,775	4,893	4,883
Texas [Member]
Depreciation and amortization:
Depreciation and amortization	3,423	3,082	3,301
Midwest [Member]
Depreciation and amortization:
Depreciation and amortization	4,417	4,271	4,449
West [Member]
Depreciation and amortization:
Depreciation and amortization	9,317	6,758	5,828
Other Homebuilding [Member]
Depreciation and amortization:
Depreciation and amortization	19,553	18,908	21,326
Home Building [Member]
Depreciation and amortization:
Depreciation and amortization	48,895	45,236	47,296
Financial Services [Member]
Depreciation and amortization:
Depreciation and amortization	$ 5,104	$ 4,193	$ 3,702