Segment Information (Land-Related Charges by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	$ 3,831	$ 2,422	$ 6,810	$ 5,841
Northeast
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	130	498	454	1,683
Southeast
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	2,015	689	2,587	1,731
Florida
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	765	226	1,246	409
Midwest
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	203	372	1,306	1,118
Texas
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	414	220	482	270
West
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	216	148	647	361
Other homebuilding
Restructuring Cost and Reserve [Line Items]
Production Related Impairments or Charges	$ 88	$ 269	$ 88	$ 269