Segment Information - Schedule of Segment Homebuilding Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Homebuilding assets:
Total homebuilding assets	$ 2,626,406	$ 2,061,104
Corporate
Homebuilding assets:
Total homebuilding assets	193,854	323,013
California | Reportable Operating Segments
Homebuilding assets:
Total homebuilding assets	934,977	631,649
Arizona | Reportable Operating Segments
Homebuilding assets:
Total homebuilding assets	176,217	170,634
Nevada | Reportable Operating Segments
Homebuilding assets:
Total homebuilding assets	212,268	211,202
Colorado | Reportable Operating Segments
Homebuilding assets:
Total homebuilding assets	156,257	149,183
Washington (1) | Reportable Operating Segments
Homebuilding assets:
Total homebuilding assets	308,901	286,442
Oregon | Reportable Operating Segments
Homebuilding assets:
Total homebuilding assets	329,779	288,981
Texas | Reportable Operating Segments
Homebuilding assets:
Total homebuilding assets	$ 314,153	$ 0