Inventory - Recoverability Schedule of Inventory Assets Held for Development, by Reportable Segment (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2016 USD ($) Community	Jun. 30, 2015 Community
Real Estate Properties [Line Items]
Number of Communities on Watch List	3	0
Undiscounted Cash Flow Analyses Prepared, Number of Communities	3
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $	$ 48,232
Corporate and unallocated
Real Estate Properties [Line Items]
Number of Communities on Watch List	0
Undiscounted Cash Flow Analyses Prepared, Number of Communities	0
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $	$ 2,794
West Segment
Real Estate Properties [Line Items]
Number of Communities on Watch List	2
Undiscounted Cash Flow Analyses Prepared, Number of Communities	2
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $	$ 22,969
Undiscounted Cash Flow Analyses Prepared, Aggregate Undiscounted Cash Flow as a Percentage of Book Value	124.00%
East Segment
Real Estate Properties [Line Items]
Number of Communities on Watch List	1
Undiscounted Cash Flow Analyses Prepared, Number of Communities	1
Undiscounted Cash Flow Analyses Prepared, Pre-analysis Book Value (BV) | $	$ 22,469
Undiscounted Cash Flow Analyses Prepared, Aggregate Undiscounted Cash Flow as a Percentage of Book Value	88.50%